Percy Jackson is a good kid, but he can't seem to focus on his schoolwork or control his temper. And lately, being away at boarding school is only getting worse -- Percy could have sworn his pre-algebra teacher turned into a monster and tried to kill him. When Percy's mom finds out, she knows it's time that he knew the truth about where he came from, and that he go to the one place he'll be safe. She sends Percy to Camp Half-Blood, a summer camp for demigods (on Long Island), where he learns that the father he never knew is Poseidon, God of the Sea. Soon, a mystery unfolds and together with his friends -- one a satyr and the other the demigod daughter of Athena -- Percy sets out on a quest across the United States to reach the gates of the Underworld (located in a recording studio in Hollywood) and prevent a catastrophic war between the gods.

Maps of Camp Half-Blood and the Underwold by Steve James. "10th anniversary; Bonus material inside!"--Dust jacket. Includes bonus material with a peek at Rick Riordan's writing process, a note from John Rocco about the creation of the cover art, maps of Camp Half-Blood and the Underwold, a Greek mythology reference guide, and more in unnumbered pages at end of work.

I accidentally vaporize my pre-algebra teacher -- Three old ladies knit the socks of death -- Grover unexpectedly loses his pants -- My mother teaches me bullfighting -- I play pinochle with a horse -- I become supreme lord of the bathroom -- My dinner goes up in smoke -- We capture a flag -- I am offered a quest -- I ruin a perfectly good bus -- We visit the Garden Gnome Emporium -- We get advice from a poodle -- I plunge to my death -- I become a known fugitive -- A God buys us cheeseburgers -- We take a zebra to Vegas -- We shop for water beds -- Annabeth does obedience school -- We find out the truth, sort of -- I battle my jerk relative -- I settle my tab -- Prophecy comes true -- Bonus material.