Book excerpt: Anyone who knows Amos knows that in his case, dogs are definitely not man's best friends. Even his own dog growls and shows his teeth whenever Amos is around. Amos isn't exactly fond of Scruff either. It's a dog-eat-dog world. But when Scruff gets mixed up in a dognapping scheme, Amos and his best friend, Dunc, have to team up to spring him. Join Gary Paulsen's cool sleuths as they go undercover at the city pound!