The Lightning Thief: Percy Jackson and the Olympians

"Is he supposed to stand by while a bully picks on his scrawny best friend? Or not defend himself when his teacher turns into a monster and tries to kill him? Mythical creatures seem to be walking straight out of the pages of Percy's Greek mythology textbook and into his life. What’s worse, he's angered a few of them: Zeus's master lightning bolt has been stolen, and Percy is the prime suspect. Percy and his friends Grover the satyr, and Annabeth, the demigod daughter of Athena, must find and return Zeus's stolen property and bring peace to a warring Mount Olympus. They travel cross country to the gates of the Underworld in Los Angeles, facing a host of enemies determined to stop them."-- Provided by Amazon