The Traitors of Camp Jupiter

This is it! The sequel to Piper Mclean the Commander of Chaos! Ace McLean is the daughter of praetor Jason Grace, and she hears a plot to overthrow her father. The bad news is, it sounds like a heck of a good plan. Ace has exactly one month before the attack to rescue her family, and the entire camp by uncovering the identity of the traitors. Will she make it in time?
SPOILER ALERT!
You should read my first book (mentioned above) and Trials of Apollo before reading this.