This Is Not My Hat - Jon Klassen

A board book edition of the bestselling, multiple award-winning cautionary tale written and illustrated by Jon Klassen.

A tiny fish proudly wears a blue hat. It fits him perfectly. Problem is that trouble could be following close behind... So it's a good thing that the enormous fish he took it from won't wake up. And even if he does, it's not as though he'll ever know what happened, right?