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Ali Sparkes

Born in Southampton in 1966, Ali Sparkes is the author of the Shapeshifter and S.W.I.T.C.H series of books. The winner of two Blue Peter Book Awards, including Book of the Year for Frozen in Time, Ali worked in theatres, at Pontin’s and as a reporter before she found her calling in writing children’s books.

Her first book, The Shapeshifter: Finding the Fox, was published in 2006 and she has followed this up with over 25 children’s fiction titles.


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Ali Sparkes Books

  • Frozen in Time

    Ali Sparkes

    Product Code: AGTKH
    Paperback 6 years +
    1956 Freddy and Polly are used to helping their father with his experiments. So they don't mind being put into cryonic suspension - having their hearts frozen until their father wakes them up again. They know it will only be for an hour or two, so there's nothing to worry about ...Present Day Ben and Rachel have resigned themselves to a long, boring summer. Then they find a hidden underground vault in the garden containing two frozen figures, a boy and a girl. And when Rachel accidentally presses a button, something unbelievable happens ...Can Polly and Freddy adapt to the twenty-first century? Will their bodies survive having been in suspension for so long? And most important of all, what happened to their father - and why did he leave them frozen in time?
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  • Night Speakers

    Ali Sparkes

    Product Code: BMOLR
    Paperback
    Night after night Elena, Matt, and Tima wake at exactly the same time, with no idea why. It's messing them up and fracturing their lives ...until they venture out into the dark and find each other. And then the sleepless trio realize their astounding power - they can speak any language; they can even communicate with animals. But something is happening over on the industrial estate-something which is emitting sounds that only they can hear, and killing any winged thing that crosses its path. There's nobody to fight it but themselves, for only they can possibly understand it and what it means to do ...A new edge-of-your-seat series from award-winning author, Ali Sparkes, with huge appeal for both boys and girls. Fast-paced action adventure about contemporary children with mysterious powers, told with Ali's classic humour and lightness of touch.
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  • Night Walker

    Ali Sparkes

    Product Code: BWFJA
    Paperback
    Spin has always dwelled in the darkness. He was happy to lurk alone, until Elena, Matt and Tima came to disrupt his night-time world. Elena, Matt, and Tima are Night Speakers. They wake up at the same time, every night, and since the beginning of these wake-up calls they have all had the power to speak any language. And that doesn't stop with humans. Something weird is going on at the hospital-children are going in, and not coming out. The Night Speakers are investigating, but even they, with their incredible powers of communication with the animal world, are struggling to find out the truth. But Spin's got a ringside seat. Because Spin's got a secret, and he's about to come out of the shadows The third standalone book in the Night Speakers series - action adventures about contemporary children with extraordinary powers, told with award-winning author Ali Sparkes's classic humour and energy.
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  • Dark Summer

    Ali Sparkes

    Product Code: AKAYX
    Paperback 9 years +
    When Eddie discovers a secret passage in Wookey Hole caves, he just has to find out where it goes. But his amazement quickly turns to horror when he gets lost in the dark. He's underground, on his own, and nobody knows where he is ...Until a hand reaches out of the blackness. A strange, pale girl helps Eddie get back to the surface, but she can't seem to leave the caves herself. Who is she? Or rather ...what is she? And what other secrets is she hiding? Only one thing is certain - this is a summer Eddie will never forget. A captivating adventure from the author of Frozen in Time - winner of the Blue Peter Book of the Year Award!
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  • Wishful Thinking

    Ali Sparkes

    Product Code: AMKBE
    Paperback 7 years +
    It's just a regular trip for Kevin, and he comes back with just the regular sorts of things. Some local fudge, a scented candle for his mum ...and his own personal god. It's Abandinus, a little-known Celtic deity, who has suddenly found a new purpose in his eternal life - sorting out Kevin's. With a god on your side, everything's going to get a lot easier, isn't it? After all, a god can get stuff done. The trouble is, it's not always the kind of stuff Kevin has in mind! Funny and exciting, this is an unputdownable adventure from the author of Frozen in Time - winner of the Blue Peter Book of the Year Award!
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  • Chameleon Chaos

    Ali Sparkes

    Product Code: AHRYW
    Paperback 7 years +
    Petty Potts' most recent reptoSWITCH spray doesn't seem to be working ...not that Josh and Danny were all that excited about being chameleons anyway-alligators would be way better! Plus, they're distracted by the mystery of who is sending them clues to find marbles filled with scientific code. But at school the next day, time seems to be going too fast for the twins, and when one of Danny's eyeballs rolls right round in its socket, they know things are getting weird. While Danny is distracted by the leafy coolness of his teacher's pot plant, Josh is causing a stir in PE, escaping the class bullies by climbing right up to the top of the gym ropes! How long will it be before the boys are boys again? And will they be able to find the next marble (and get their own back on those bullies) in the meantime?
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  • Turtle Terror

    Ali Sparkes

    Product Code: AHRYR
    Paperback 7 years +
    Josh and Danny are on holiday with their parents in Cornwall-so the last person they expect to see is mad scientist, and next door neighbour, Petty Potts! So when the twins see her on the beach - holding a turtle under each arm-they can't help but wonder what she's up to. The thing is, the boys have got other things on their mind. They've found another mystery marble clue, and need to get out to the ruined fort on the rocky island. But they take too long and the tide comes in, trapping them. Luckily, they have a bottle filled with SWITCH spray and turn themselves into leatherback turtles! Their swim back to mainland is filled with danger ...Will Danny be able to save Josh from the fishing net before he SWITCHes back in to a boy?
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  • Night Terrors

    Ali Sparkes

    Product Code: CBXDD
    Paperback
    It's not every day a couple of eagles pay you a visit in the middle of the night and tell you your friend, who happens to be hundreds of miles away, is in terrible danger. But Matt and Elena are not everyday people. They're Night Speakers, with the ability to communicate with animals, and an uncanny habit of getting into save-the-world situations. But what is shaking the birds' world so much that it would drive them to fly hundreds of miles? Something huge and horrifying is happening, and Tima is in the middle of it. Can Matt and Elena get to her in time? Something is going on below the surface, and only the Night Speakers can stop us all from falling into the cracks. . . The fourth standalone adventure in the Night Speakers series - action adventures about contemporary children with extraordinary powers, told with award-winning author Ali Sparkes's classic humour and energy.
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  • Anaconda Adventure

    Ali Sparkes

    Product Code: AHRZB
    Paperback 7 years +
    Josh and Danny have gone for a nice day out at the zoo. Or, should that be, a nice, experimental, day out at the zoo? Petty's developed a new SWITCH spray for snakes! And Josh and Danny are willing volunteers. Things start to go a bit wrong though when they fail to SWITCH back into boys, and are spotted by a whole class of girls on a school trip! Luckily, Charlie, an old friend from summer camp, is there to help, and the panic subsides. The trouble is not over yet though ...
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  • Grasshopper Glitch

    Ali Sparkes

    Product Code: AHRZA
    Paperback 7 years +
    Josh and Danny let Petty Potts-their barmy next-door neighbour and scientist extraordinaire-give them a lift to school, but after a mix up with their drink and some S.W.I.T.C.H spray the twins suddenly have green feelers, ears in their abdomens and a strange ability to chuck up brown goo. The boys must SWITCH back before anyone notices they're not in class. But school is the least of their worries-they're just a whisker away from trouble-there's a grasshopper muncher on the loose ...Petty Potts's diary entry: One day, I am going to find Victor Crouch-confront him-and make him confess that he stole my work and burnt out my memory. But in the meantime, as far as Josh and Danny are concerned, I will keep my promise and will never make them try any more spray or potion. Or trick them. Or bribe them. Or anything like that. Probably.
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  • Gecko Gladiator

    Ali Sparkes

    Product Code: AHRYY
    Paperback 7 years +
    Petty Potts has vanished-at least it seems that way to Josh and Danny. In actual fact, she's just relocated her secret lab ...to the VERY pink and VERY girly Princess Land! Reluctantly, the twins fight their way through hordes of excited girls dressed as fairies to the back of the shop, where a single door stands between them and Petty's new lab. SWITCHing into geckos, the boys have no problems getting under the door and up the walls. It's on the way out that things start to get really tricky ...the SWITCH back hasn't gone well, and although Josh and Danny have normal legs, they're giant geckos from the waist up! How on earth will they escape from Princess Land now?!
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  • Thunderstruck

    Ali Sparkes

    Product Code: AXEUX
    Paperback
    What if your new best friend was a ghost? Getting struck by lightning whilst huddling under a tree isn't exactly the way Alisha and Theo would have chosen to get out of sports day ...Surviving the strike makes them see life differently. It also makes them notice Doug and Lizzie. Struck by lightning under that same tree on the common in 1975, the two teenagers have been hanging out there ever since. Doug and Lizzie are funny, clever, brave - and quite happy about making friends with a pair of ten-year-olds. OK, fair point, they are dead, and Doug's trousers are worryingly flared. But you can't have everything. But something sinister is going on at school - although only Theo and Alisha seem to be able to see it. What can it mean when ragged faceless entities keep staring in through the windows? Not all ghosts are friendly like Doug and Lizzie ...but are these phantoms really the harbingers of doom for all the kids at Beechwood Junior? A fun and fast-paced ghostly mystery with lightning strikes, floating phantoms, and four fantastic friends just trying to get on with their everyday lives ...or deaths ...From the prize-winning author of Frozen in Time, the Shapeshifter series, and many more!
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  • Car-Jacked

    Ali Sparkes

    Product Code: AMJSI
    Paperback 7 years +
    Jack Mattingly is a genius. He has an IQ of 170. He speaks fluent Mandarin and Latin. And he can calculate the square root of 1,673,549 in his head. But when Jack's parents' car is hi-jacked, with him inside it, for once he's as clueless as the rest of us. The car-jacker doesn't know Jack's in the car - yet. But it's only a matter of time before he's discovered. And then, anything could happen. Only one thing's for sure: Jack's in for the thrill-ride of his life ...A high-octane adventure from the winner of the Blue Peter Book of the Year Award.
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  • Out of This World

    Ali Sparkes

    Product Code: AKLCG
    Paperback
    Tyrone Lewis is messing about in the woods, trying to keep out of trouble, when he stumbles upon something weird ...a glowing lump of rock or metal or something. Whatever it is, it gives him an amazing power. Which is cool at first, until Ty's new powers start attracting attention, and soon he's being followed by two sinister agents who seem intent on 'collecting' him. But Ty has no intention of letting that happen. So now he's got to RUN ...
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  • Destination Earth

    Ali Sparkes

    Product Code: AKAVH
    Paperback 9 years +
    Like Doctor Who? You'll LOVE the new action-packed adventure by Ali Sparkes - winner of the Blue Peter Book of the Year Award! Imagine you are the only survivor from another planet. You've spent ten years on a spaceship learning how to be human, and now the end of your journey is in sight ...All you have to do is land safely, convince the earthlings that you're a real teenager, and start your new life on Earth. No problem. Except that the killer alien responsible for wiping out your people has hitched a lift. And it's just a matter of time before it starts on the human race ...
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  • Ant Attack

    Ali Sparkes

    Product Code: AHRZC
    Paperback 7 years +
    Josh and Danny know that their day is going to be a nightmare when their mum invites Tarquin round from next door. But they have no idea exactly how deadly the day will become until they are accidentally turned into ants. Where's Petty Potts - their friend and mad scientist - when the twins need her to SWITCH them back? Armed with his magnifying glass, Tarquin can't wait to roast some insects. Danny and Josh may each have six legs but will they be able to get away in time? Petty Potts's diary entry: I have to warn Josh and Danny about the spies. I don't think they believed me. I might have to show them some evidence of my life before, when I worked with Victor Crouch in the government's secret underground labs. And I should probably show them his photograph. They need to be on their guard now. They may only be children, but that wouldn't stop Victor if he ever found out what they knew. That wouldn't stop him at all ...
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  • Alligator Action

    Ali Sparkes

    Product Code: AHRYZ
    Paperback 7 years +
    Petty's been kidnapped! Josh and Danny have already broken into her secret lab looking for her, and now they're going to brave all her anti-intruder traps and break into her house. There's no sign of Petty, but there is a very interesting little box ...containing the best SWITCH spray ever. Unable to resist the temptation, the twins head to the park to try out alligatorSWITCH spray. But before they make it to the river, they're roped into being in the audience of a touring chat show, with some VERY interesting guests ...
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  • Lizard Loopy

    Ali Sparkes

    Product Code: AHRYX
    Paperback 7 years +
    Petty's back with a new kind of SWITCH spray-reptoSWITCH! The lizard formula is ready for testing, and Josh and Danny are eager to help. But as Josh and Danny are trying it out in the safety of Petty's secret underground lab, they're interrupted by an intruder's attempt to get in to Petty's house! The intruder vanishes, but there is a package waiting for Josh and Danny at home containing a marble and a cryptic clue. Will Josh and Danny find the next mysterious marble? And will they be able to work out who sent the clue, and why?
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  • Beetle Blast

    Ali Sparkes

    Product Code: AHRYV
    Paperback 7 years +
    Josh and Danny are on a day out with the local nature group, but when they accidentally eat a chocolate muffin laced with S.W.I.T.C.H formula, they experience the real dangers of pond life first hand. Soon the boys are beetling about in a pond, breathing underwater, and creating the most almighty stench to scare off predators. But life as a pongy pond beetle is the least of their problems-there's a mysterious stranger hanging around-and he's out to get them. Will Josh and Danny find out who the stranger is before it's too late? And can they help Petty Potts in her mission to recover all of the REPTOSWITCH cubes so she can turn them into even more exciting beasties? Petty Potts's diary entry: I do hope Josh and Danny will come round tomorrow-they have to understand the DANGER we're all in! And of course, I really need their help. I'm sure I will manage to talk them around. After all, they both can't wait to try out being a giant python or an alligator or a monitor lizard.
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  • Crane Fly Crash

    Ali Sparkes

    Product Code: AHRYU
    Paperback 7 years +
    Josh and Danny must go on a rescue mission to save their annoying big sister, Jenny, when she accidentally uses the S.W.I.T.C.H spray on herself and turns into a crane fly! The twins know there's only one thing for it - they'll have to change themselves into crane flies too, and try to keep their sister out of trouble. However risky ...Can the boys resist the lure of the light bulb and stop Jenny from getting legless? And will Piddle the dog be able to resist a crunchy, bugtastic snack? Petty Potts's diary entry: Victor Crouch's spies could be anywhere! I keep imagining that old eyebrow-less freak staring through my windows ...But I suppose I do have to remember that sometimes I see and hear things which aren't really there. That's all part of the package when you're a genius. I will make sure Josh and Danny keep very watchful, though. Ah ha! Ah ha ha ha ha! Erm. Scary powerful laugh etc. (It doesn't really work, typed out, does it?)
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  • Fly Frenzy

    Ali Sparkes

    Product Code: AHRYT
    Paperback 7 years +
    Something precious has been stolen from Josh and Danny's garden and it's up to the twins to solve the mystery. They need a disguise and Petty Potts-the mad scientist from next door-is all too happy to help with her S.W.I.T.C.H spray. Soon the boys have wings, 360 degree vision, and a strange attraction to dog poo. Flying into enemy territory is a dangerous business. It's definitely snot funny when they encounter a hairy nostril but that's nothing compared to a sticky web and the power of the swat. Will they make it a flying a finish and save the day, or will the twins be turned into fly soup? Petty Potts's diary entry: Josh is the cleverest one and really knows his wildlife, so he should be quite a help in making notes. Danny is bright too, though, and very brave considering he is actually quite scared of bugs and insects. Of course, most importantly they are four extra eyes in the search for the missing REPTOSWITCH cubes ...if Josh and Danny can help me find them, I will be able to advance the project to the reptilian level!
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  • Switch: Spider Stampede

    Ali Sparkes

    Product Code: AHRYS
    Paperback 7 years +
    Josh and Danny have lost their dog, Piddle, and sneak next door to try and find him. They get more than they bargain for when they run into their next-door neighbour, Petty Potts - a mad scientist with a gleefully beastly serum. One accidental squirt of the S.W.I.T.C.H spray later and the twins find themselves with eight legs and the ability to shoot webbing out of their bums! Josh and Danny are in big bug trouble as they face a dangerous journey across their back garden in the hope that Petty can SWITCH them back. But it's a big bad world out there and the brothers are no longer top of the food chain. Petty Potts's diary entry: I think it's high time I had some assistance on the SWITCH PROJECT ...If only I could remember what happened to the rest of my research! I know I put the code for SWITCHing creatures to reptiles in the crystal cubes, as I did for the bugs and insects formula ...and I know I hid the cubes somewhere safe from even me! I just can't remember. Victor Crouch has a lot to answer for. I will get my revenge on him. For burning out chunks of my memory and trying to steal my life's work.
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  • Unleashed 1: a Life & Death Job

    Ali Sparkes

    Product Code: AGJDH
    Paperback 9 years +
    A group of very special teenagers. Each with an incredible power, they live together, protected by the government. Out in the ordinary world they know they must not use their powers. But good intentions are easy ...following them through is another matter. Lisa is one such extraordinary teenager. For her, every day is about life and death. Because she can hear the dead talking, and they never leave her alone. But on a short break in London, the tussle between life and death takes on a new twist. A brilliantly planned kidnap thrusts Lisa into the role of reluctant rescuer alongside Michael, a famous TV psychic. Together they set out to find a missing girl and walk straight into mortal danger. Now Lisa is in fear for her own life, is there anyone to help her?
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  • Unleashed

    Ali Sparkes

    Product Code: AEGKB
    Paperback 7 years +
    A group of very special teenagers. Each with an incredible power, they live together, protected by the government. Out in the ordinary world they know they must not use their powers. But good intentions are easy ...following them through is another matter. With his supernatural ability to conjure spectacular illusions, Spook Williams knows he is destined for greatness. So when he's kidnapped by a celebrity magician claiming to be his real father, he can't help but be intrigued ...Very soon, Spook is living the dream: bathing in a jacuzzi aboard a luxury yacht, rubbing shoulders with billionaires, and spending time with gorgeous magician's assistant, Kamilah ...But when he is asked to take part in a daring heist, will Spook be able to resist this opportunity to flex his powers?
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