Azaleah loved her class field trip to the National Zoo in Washington D.C, and is looking forward to earning extra credit by building a diorama of a tiger in his natural habitat for extra credit--but before she can even begin her task she has to solve the mystery of her younger sister's favorite missing stuffed animal because her parents and older sister are too busy and Tiana is ready to throw a tantrum.

Azaleah's older sister Nia is going to be the star of the school musical but things keep going wrong at the rehearsals (missing batteries, disappearing props, microphones that suddenly do not work); Mr. Guidi, the director, blames the ghost of Thespis, but Azaleah suspects that somebody is actually sabotaging the play--and she is determined to use her detective skills to uncover the culprit, and set things right so the play will be a complete success...