Agent Lion and the Case of the Missing Party

Petunias birthday is today, and shes got everything a birthday girl needs:

An excited smile

The perfect bow

A big party

Wait . . . where is the party?! It was just here a second ago! The balloons, streamers, and guests are all gone!! In a mad dash to find it, Petunia calls the best detective in town, Agent Lion. He runs through the halls, follows clues, and even takes a quick swimbut will Agent Lion find Petunias celebration in time?