Have you got what it takes to keep Dennis and Walter from erasing each other from history?
Binding: Paperback
Date Published: 29 Jan 2026
It's a week night and you have a sleepover round Dennis's house! It's going to be EPIC!
... Is what you thought before Dennis pulled a prank that shut the school down and you were forced to go to work with his parents. BORING!
... Is what you thought before you, Dennis, Gnasher and Walter got sucked into a time machine that sent you back in time to when their parents were your age! AWESOME!
... Is what you thought before Dennis and Walter messed with the timeline and started disappearing.
Can you make the right decisions and get history back on track before it's too late? Find out in this pick your own story, where YOU are the main character!
Craig Graham and Mike Stirling were both born in Kirkcaldy, Fife, in the same vintage year when Dennis became the cover star of Beano. Ever since, they've been training to becomes the Brains Behind Beano Books (which is mostly making cool stuff for kids from words and funny pictures). They've both been Beano Editors, but now Craig is Managing Editor and Mike is Editorial Director (ooh, fancy!) at Beano Studios.
We provide FREE delivery in the Republic of Ireland when you spend €49 or more.
FREE Click & Collect from The Ennis Bookshop. You will not be charged for this service. We are happy to arrange Delivery outside Ireland. Please e-mail us at enquiries@ennisbookshop.ie for more information.
Find out more about our Delivery & Collection services
We want you to be completely satisfied with your order and we would hope to resolve any problems you may have. If you are unhappy with your purchase, we will exchange or refund the item or issue a credit note, providing the goods are not damaged and all packaging is still intact.
Terms and conditions apply.
Please view our full Returns Policy for further information.
'The first thing I ever picked up to read for pleasure was The Beano.' - David Walliams
POP-IN HTML goes here