Kristen's parents just can't seem to do anything right. First they have their baby at the zoo, not in a hospital. Then they accidentally bring home an alligator baby! After it bites everyone on the nose, they return to the zoo and come back with a seal baby! Kristen sees that she will have to solve this problem herself. She bikes to the zoo and finds their baby with ...
Well, it wasn't me, and it wasn't you. So, who has eaten all the lettuce? Follow the trail trough the book, lifting up the objects you find on the way. Who knows what's waiting to pop up?