|Author||: Rick Riordan|
|Publisher||: Disney Press|
|Release Date||: 20 March 2007|
|Pages||: 279 pages|
|Rating||: 4/5 (33 users)|
When Camp Half-Blood, the only safe haven for demigods, comes close to being overrun by mythological monsters, Percy must find his best friend Grover, who is prisoner on an island in the Bermuda Triangle, and then set out to save the Camp.