
Cover image is for illustration. Actual edition may vary.
Matt Brown
About this book
Compton Valance has an incredible secret: he can travel through time using a mouldy sandwich.
How to become the most POWERFUL BOY IN THE UNIVERSE. 1. Leave cheese-and-pickled-egg SANDWICH in lunchbox for thirteen weeks. 2. Open lunchbox to find that sandwich has turned into a TIME MACHINE.3. Accidentally wipe out the DINOSAURS with a packet of custard creams.4. Try to stop someone evil stealing the most POWERFUL SANDWICH of all TIME and changing the history of the universe FOR EVER.
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