A New York Times Bestselling Author -- With an ever-expanding cast of brave-hearted heroes, the second book in the Heroes of Olympus series offers all of the action, pathos, and humor that Rick Riordan fans crave ...In The Lost Hero, three demigods named Jason, Piper, and Leo made their first visit to Camp Half-Blood, where they inherited a blood-chilling quest: Seven half-bloods shall answer the call, To storm or fire the world must fall, An oath to keep with a final breath, And foes bear arms to the Doors of Death. But who are the other four mentioned in the prophecy? The answer may lie in another camp miles away ...