The lost hero / Rick Riordan.

Enhanced descriptions from Syndetics:

Rick Riordan, the best-selling author of the Percy Jackson series, pumps up the action and suspense in The Lost Hero , the first book in The Heroes of Olympus series.
"Riordan extends the franchise in a logical direction while maximizing the elements that made the first series so popular: irreverent heroes, plenty of tension-filled moments fighting monsters, and authentic classical mythology mixed in with modern life."-- Horn Book A New York Times best-seller A spin-off of the blockbuster Percy Jackson and the Olympians series, but stands on its own Combines Roman and Greek mythology Told from the points of view of a diverse cast of demigods Memorable characters, witty dialogue, and non-stop action have made this series popular across the globe Perfect for middle grade readers but can be enjoyed by older readers, too Jason has a problem. He doesn't remember anything before waking up on a school bus holding hands with a girl. Apparently she's his girlfriend Piper, his best friend is a kid named Leo, and they're all students in the Wilderness School, a boarding school for "bad kids." What he did to end up here, Jason has no idea--except that everything seems very wrong.

Piper has a secret. Her father has been missing for three days, and her vivid nightmares reveal that he's in terrible danger. Now her boyfriend doesn't recognize her, and when a freak storm and strange creatures attack during a school field trip, she, Jason, and Leo are whisked away to someplace called Camp Half-Blood. What is going on?

Leo has a way with tools. His new cabin at Camp Half-Blood is filled with them. Seriously, the place beats Wilderness School hands down, with its weapons training, monsters, and fine-looking girls. What's troubling is the curse everyone keeps talking about, and that a camper's gone missing. Weirdest of all, his bunkmates insist they are all--including Leo--related to a god.

Fans of demigods, prophecies, and quests will be left breathless--and panting for Book Two.

Reviews provided by Syndetics

Publishers Weekly Review

Percy Jackson fans can rest easy: this first book in Riordan's Heroes of Olympus spin-off series is a fast-paced adventure with enough familiar elements to immediately hook those eager to revisit his modern world of mythological mayhem. Clever plot devices-like gods who shift back and forth between their Greek and Roman personae-keep the book from feeling like a retread of Riordan's previous novels. Jason, Piper, and Leo, three students at a wilderness school for troubled teens, are transported to Camp Half-Blood after an unexpected encounter with evil storm spirits on the rim of the Grand Canyon. Not only do they discover that they are the offspring of ancient gods, but they also learn that they are three of seven demigods mentioned in the Great Prophecy uttered by Rachel in The Last Olympian. Wasting little time acclimating to their new lives, the three embark upon a quest to preserve Mt. Olympus and the divine status quo, by rescuing an erstwhile enemy. Rotating among his three protagonists, Riordan's storytelling is as polished as ever, brimming with wit, action, and heart-his devotees won't be disappointed. Ages 10-up. (Oct.) (c) Copyright PWxyz, LLC. All rights reserved.

School Library Journal Review

Gr 5-9-This book will delight fans of The Lightning Thief (Hyperion, 2005) as Percy, Annabeth, and others play roles in the new prophecy and its subsequent quest. A few months after The Last Olympian (Hyperion, 2009) ends, Jason wakes up on a bus filled with problem kids from the Wilderness School who are headed to the Grand Canyon. He has no memory of his previous life, but seems to be with his girlfriend, Piper, and his best friend, Leo. The action takes off quickly: storm spirits attack them and capture their coach, who turns out to be a Satyr. Searching for Percy, who is missing, Annabeth arrives and takes the three to Camp Half-Blood, where they learn that they are demigods. Their parents are gods in their Roman rather than Greek personae. By sunset of the solstice in three days, the teens must rescue Hera, Queen of the gods, or Porphyrion, the giant king created to destroy Zeus and unseat the gods of Olympus, will rise. Their quest takes them across the United States, sometimes flying on a mechanical, 60-foot dragon, as they use their power and wits against Medea, King Midas, and the giant cannibal Enceladus. Riordan excels at clever plot devices and at creating an urgent sense of cliff-hanging danger. His interjection of humor by incongruous juxtaposition-Medea, for example, heads up a New York City department store-provides some welcome relief. The young heroes deal with issues familiar to teens today: Who am I? Can I live up to the expectations of others? Having read the first series is helpful but not essential, and the complex plot is made for sequels.-Connie Tyrrell Burns, Mahoney Middle School, South Portland, ME (c) Copyright 2011. Library Journals LLC, a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.

Booklist Review

Readers longing for a return to Camp Half-Blood will get their wish in the first novel of the Heroes of Olympus series, which follows Riordan's popular Percy Jackson and the Olympians series and includes some of the same characters in minor roles. The new cast features Jason, Piper, and Leo, teen demigods who are just coming to understand and use their unique abilities as they learn how much depends upon their wits, courage, and fast-developing friendship. Setting up the books to come, the backstory of a master plan to unseat the gods is complex but is doled out in manageable bits with a general air of foreboding. Meanwhile, the action scenes come frequently as the three heroic teens fight monstrous enemies in North American locales, including the Grand Canyon, Quebec City, Detroit, Chicago, Omaha, Pikes Peak, and Sonoma Valley. Flashes of humor lighten the mood at times, but a tone of urgency and imminent danger seems as integral to this series as the last. With appealing new characters within a familiar framework, this spin-off will satisfy the demand for more.--Phelan, Carolyn Copyright 2010 Booklist

Horn Book Review

Camp Half-Blood, home to the mortal children of Greek gods (see the Percy Jackson and the Olympians books), has three new arrivals: Piper, a daughter of Aphrodite, good at persuasion; Leo, a son of Hephaestus, good at fixing things; and Jason, a son of Zeus, who is suffering from amnesia. With the Titan war over, a new threat has emerged: a prophesied clash with Gaea's youngest children, the giants, who are returning to overthrow the Olympians. Riding a bronze dragon rehabilitated by Leo, the three demigods go on a quest to free Hera from one such giant; another giant secretly holds Piper's father hostage in order to force her to betray her new friends. Jason's missing memories point to another mystery: why does Jason speak Latin rather than Greek like the other demigods? Why are the initials SPQR tattooed on his arm? Why does he know the Roman names for mythological creatures? Riordan extends the franchise in a logical direction while maximizing the elements that made the first series so popular: irreverent heroes, plenty of tension-filled moments fighting monsters, and authentic classical mythology mixed in with modern life. Completely in control of pacing and tone, he balances a faultless comic banter against deeper notes that reveal the characters' vulnerabilities. With Percy Jackson slated to make an appearance in later volumes, fans nostalgic for the old books should find in this new series everything they've been pining for. ANITA L. BURKAM (c) Copyright 2010. The Horn Book, Inc., a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.