Animorphs, Bd.12, Der Schock

A book about female puberty fears that somehow found its way into the Animorphs series.
About 1% of the decisions made by the characters in this book make any sense.
Cassie turning off the lights and acquiring Rachel are the two that come to mind, and may represent the only sensible decisions in the whole book.

Fun fluff series that gets less and less fluff over time.