The Pet Show Mystery — Kathryn Kenny

When a classmate draws Trixie's attention to the plight of the local birds during a cold winter, the Bob-Whites decide to organise a Pet Show to raise awareness and money to feed the birds. However, not everyone is supportive of the idea and the Pet Show is threatened by sabotage on several fronts. Trixie suspects the angry young man who runs the Anti-Hunger Foundation, but Trixie discovers he is guilty of a more serious crime and the Bob-Whites are forced to look at themselves and admit that their actions do not help everyone.