The trouble starts when Apollo introduces Percy and his friend Grover the satyr to the Chryseae Celedones. Three golden women--living statues--appear in front of them, and sing one blissful chord. Apollo has a concert tonight at Mount Olympus, and he needs the Celedones as his backup singers. But there should be a quartet, not a trio--one of the singers has gone rogue. It's up to Percy and Grover to find the missing Celedon somewhere in New York City before she causes any problems. Capturing an attention-seeking automaton in a crowd of mortals is going to require some cagey thinking. Will Percy and Grover succeed, or hit a sour note?

How do you punish an immortal?

By making him human.

After angering his father Zeus, the god Apollo is cast down from Olympus. Weak and disorientated, he lands in New York City as a regular teenage boy. Now, without his godly powers, the four-thousand-year-old deity must learn to survive in the modern world until he can somehow find a way to regain Zeus's favour.

But Apollo has many enemies—gods, monsters and mortals who would love to see the former Olympian permanently destroyed. Apollo needs help, and he can think of only one place to go... an enclave of modern demigods known as Camp Half-Blood.

Zeus has punished his son Apollo--god of the sun, music, archery, poetry, and more--by casting him down to earth in the form of a gawky, acne-covered sixteen-year-old mortal named Lester. The only way Apollo can reclaim his rightful place on Mount Olympus is by restoring several Oracles that have gone dark. What is affecting the Oracles, and how can Apollo/Lester do anything about them without his powers?

After experiencing a series of dangerous--and frankly, humiliating--trials at Camp Half-Blood, Lester must now leave the relative safety of the demigod training ground and embark on a hair-raising journey across North America. Fortunately, what he lacks in godly graces he's gaining in new friendships--with heroes who will be very familiar to fans of the Percy Jackson and the Olympians and Heroes of Olympus series. Come along for what promises to be a harrowing, hilarious, and haiku-filled ride. . . .

In response to an awful camp orientation video created by the god Apollo, Percy Jackson and other residents of Camp Half-Blood answer such questions as “What is this place?” and “Do I get to keep the T-shirt?” Newbies can check out the section on the Divine Cabins, read up on Magical Landmarks, and consult the chapter of Training Arenas. But Camp Half-Blood Confidential explores much more than just the buildings and grounds. It includes info that can only be learned from those who live there.

For instance, campers do not always co-exist in peace and harmony. The camp is not run with superior efficiency. Prophecies do not flow forth with great regularity. Sprinkled throughout are stories from heroes who have called Camp Half-Blood home or just passed through on their way to places unknown. Chiron himself introduces the book with a brief history of training based on his millennia of experience. And, of course, there are divine words of wisdom from the god Apollo himself, because . . . well, because the demigod authors would prefer not to be struck down, thank you very much.

The formerly glorious god Apollo, cast down to earth in punishment by Zeus, is now an awkward mortal teenager named Lester Papadopoulos. In order to regain his place on Mount Olympus, Lester must restore five Oracles that have gone dark. But he has to achieve this impossible task without having any godly powers and while being duty-bound to a confounding young daughter of Demeter named Meg. Thanks a lot, Dad.

With the help of some demigod friends, Lester managed to survive his first two trials, one at Camp Half-Blood, and one in Indianapolis, where Meg received the Dark Prophecy. The words she uttered while seated on the Throne of Memory revealed that an evil triumvirate of Roman emperors plans to attack Camp Jupiter. While Leo flies ahead on Festus to warn the Roman camp, Lester and Meg must go through the Labyrinth to find the third emperor—and an Oracle who speaks in word puzzles—somewhere in the American Southwest. There is one glimmer of hope in the gloom-filled prophecy: The cloven guide alone the way does know. They will have a satyr companion, and Meg knows just who to call upon. . . .