Where's Iggy?

The petsitting kids are on their scariest assignment yet, minding spooky Iggy the iguana. You never know what he's thinking, and he likes to hide up chimneys. Worst of all, he eats live crickets. Scary or not, this is a job the Petsitters have promised to do. But things get off to a bad start on their very first day, when Iggy decides to disappear.