In The Doghouse — Lisa Banim

In the Doghouse (Lizzie McGuire Mystery #5): To raise money for an animal shelter, Lizzie starts her own dog-walking and dog-sitting business with her two best friends, Miranda and Gordo. The idea is such a good one that cheerleaders Kate and Claire are seriously jealous-since their own lame pom-pom fundraiser is a total failure. Then someone lets the dogs out of the McGuires' backyard, and Lizzie is really in the doghouse. She not only has to track down the missing dogs, but she's also got to track down the guilty party before he or she strikes again! Could it be her jealous rivals? Her toxic little brother's idea of a prank? Or what about those two neighbors who wouldn't stop complaining about the barking? Time for snoop dog McGuire to sniff out the truth of this doggone mystery!