The new Christmas bestseller from the creators of the Fart Monster.

Straight from the prehistoric era comes an ex-STINK-tion story like no other!

Life’s hard when there’s only one toilet and all the dinos need to go! There’s a dumping pterodactyl, a plopping stegosaurus and a T. rex who can’t reach to wipe …

But when it’s finally Mike’s turn, could one tiny bowel movement end in disaster?