When dinosaurs ruled the earth, the fiercest dinosaur of all was...Tinyrannosaurus. Because he wasn't as big as some of the other dinosaurs, Tiny had to be especially fierce to make up for it. Enter the manic world of by far and away the grumpiest little dinosaur ever!
Four stories about Henry, in which he has to face Nurse Needle for an injection, torments his brother Peter, creates havoc at his birthday party, and plans revenge when Moody Margaret won't let him into her secret club.