From Percy Jackson: Camp Half-Blood Confidential: Your Real Guide to the Demigod Training Camp

Parents need to know that From Percy Jackson: Camp Half-Blood Confidential: Your Real Guide to Demigod Training Camp is a slim illustrated companion to Rick Riordan's Trials of Apollo series. Readers well versed in Percy Jackson's world -- the Percy Jackson series, the Heroes of Olympus series, Percy Jackson's Greek Gods -- are the best equipped to get the fun and jokes here. There's a glossary in the back if you need a refresher. As this is a guide instead of a stand-alone story, most violence is in memories about past adventures. Before many-eyed Argus joins the camp as a security guard, he's "brained" with a rock but survives. Old campers come to save new ones when hundreds of monsters attack the camp, with no mention of deaths or injuries. In the camp's Combat Arena, "the hits are real, and so is the blood." New campers are warned to stay away from Peleus, the guardian dragon; the cursed corner of Bunker 9; and the Myrmekes' Lair (because of giant ants).