No smiling or laughing allowed. Don’t even think about it. Jelly means business in this seriously silly interactive picture book follow-up to the bestselling This Book is Dangerous!, a spin-off of the beloved Narwhal and Jelly series.

Who messed with the title of this book? Was it YOU?

Hold in those smiles and giggles and don’t you dare make a silly face or sound — Jelly is a SERIOUS jellyfish, and this is a SERIOUS book.

Jelly has serious plans for this book and doesn’t need any smiling, laughing, funny faces OR noises to derail it. And even if you do silly stuff Jelly will still be serious . . . even if he had a fuzzy pink mustache, or a name like “Jellysquish,” or wore silly striped socks with silly faces that made silly sounds. Hey, don’t let that give you any ideas!

THIS BOOK IS DANGEROUS!
(June 2025, Tundra/Penguin Random House Canada, 44 pp)
Take the plunge into this interactive picture book spin-off of the Narwhal & Jelly series featuring the beloved anxious jellyfish, Jelly, who readers will attempt to safely navigate through the dangerous ocean . . . with hilariously mixed results!

Did the title just say that this book is dangerous? Jelly doesn’t do dangerous. Can you help Jelly find a way out? Great! Just don’t make any sudden moves or loud noises . . . and definitely DON’T touch anything!

While everything seems to come sunny-side up for Narwhal on their adventures, Jelly has more than a few worries about the many dangers waiting out there in the ocean: sea beasts, pirates, circus cannons, giant squid, lost porcupines, and spiky things of any kind could be lurking around each turn of the page! Jelly has got to find a way out of this book, and it’s up to the reader to help them . . . or not!

Come along and make your own waves as Jelly faces more than a few fears and sets sail for a dangerously sweet ending!

In the grand tradition of classics like The Monster at the End of this Book, This Book is Dangerous is a funny, fresh and vibrant new entry into the adorable, humor-filled world of Narwhal and Jelly that is destined to become a read-aloud staple for longtime fans and newcomers alike, featuring a glow-in-the-dark front cover!