"When mysterious incidents start wreaking havoc throughout Camp Jupiter, suspicion falls on the Fourth Cohort's newest probatio. But is she really to blame? Find out the truth by delving into the pages of her personal journal"--
Ages 8-12. Disney-Hyperion.|||Grades 4-6. Disney-Hyperion.|||juvenile
Rick Riordan.
"An official Rick Riordan companion book."
