The Potion of Doom
Format:Paperback
Publisher:HarperCollins Publishers
Publishing:24th Sep '26
£7.99
This title is due to be published on 24th September, and will be despatched as soon as possible.

The funniest illustrated gothic fantasy adventure by the prize-winning author of THE BEAST AND THE BETHANY, perfect for kids aged 8+ and new for 2026!
'I can’t wait to read it again.' — Lemony Snicket The ghastly tale of a spoiled child, a crumbling manor and a life-changing potion … perfect for fans of the award-winning The Beast and the Bethany series!'I can’t wait to read it again.' — Lemony Snicket The ghastly tale of a spoiled child, a crumbling manor and a life-changing potion … perfect for fans of the award-winning The Beast and the Bethany series! The only thing you need to know right now is that it all started for Henrik Jekyll when he found out about the Hyde Potion …
In a whimsical twist on the classic Strange Case of Dr Jekyll and Mr Hyde by RL Stevenson, spoiled young Henrik Jekyll has been left his ancestor Dr Jekyll’s house, laboratory, and — most importantly — secret, life-altering Hyde Potion recipe. Henrik’s curiosity soon leads him down a dark path, unleashing a chaotic alter ego named Eddie. With Eddie's strength and mischief wreaking havoc in the local town, Henrik must confront the consequences of his reckless actions. Can he learn to control his inner Hyde before it’s too late, or will he succumb to the chaos? And what darkness lurks in the foundations of Jekyll Manor itself?
- gothic humour
- Chaos and mayhem
- potions and laboratories
- monsters inside and out …
Perfect for 8+ fans of Mallory Vale and the Curse of Maggoty Skull, Gloam and Stitch Head
'A good book is like a strong potion, and this book made me shiver uncontrollably and collapse in a heap. I can’t wait to read it again.' — Lemony Snicket
‘Meggitt-Phillips brings a whimsical twist to a classic tale’ — Caroline Carpenter, The Bookseller
‘I can’t recommend this book highly enough. It’s one of those rare children’s books that hooks adults just as much as kids, thanks to its sharp, dark humour … Jack Meggitt-Phillips is one of the most original and inventive middle-grade writers working today, and I’m legit on tenterhooks to see where this series takes us next.’ — Ramzee, creator of The Cheat Book
“For my money, Jack is one of the finest and funniest writers breathing — and despite his best efforts, cannot disguise that enormous heart of his on or off the page. This is another utter triumph and deserves All The Things.” Another utter triumph and deserves All The Things” — Maz Evans
“A truly TYRANNICAL TREAT” — Laura Ellen Anderson
“Genuinely hilarious” — Louie Stowell
“Mixes penny dreadful gruesomeness with a gleeful comedic voice and is never anything less than raucously fun” — Jack Mackay
“Wickedly good and dreadfully funny, hilariously miserable and seriously silly. Brilliant stuff!” — Alastair Chisholm
“Spooky and silly, mysterious and menacing — this gothic adventure will make you giggle with ghoulish glee!” — Eve Wersocki-Morris
"Brilliant. Shame the author is so dreadful’ — Sam CopelandREADERS LOVE THE POTION OF DOOM!‘I enjoyed how funny it was and really couldn't wait to find out what happens to Henrik’ (reader aged 10)
‘It was so funny and a bit silly in the best way’ (reader aged 8)
‘I would give this book 5 stars because it made me laugh so much and I think lots of children would enjoy it too’ (reader aged 8)
‘I couldn’t stop laughing’ (reader aged 8)
‘My son really enjoyed reading this book and struggled to put it back down again’ TOPPSTA review – read to aged 9
‘A really entertaining and unexpected read’ – parent reviewer
ISBN: 9780008776947
Dimensions: 198mm x 129mm x 21mm
Weight: 270g
224 pages