The Son of Neptune

Blurb

The Son of Neptune is a 2011 fantasy novel, the second book in The Heroes of Olympus series written by Rick Riordan. The story follows the adventures of amnesiac Percy Jackson, a demigod son of Poseidon, as he meets a camp of Roman demigods and goes to Alaska with his new friends Hazel Levesque and Frank Zhang to free the Greek god of death, Thanatos and help save the world from Gaia, the earth goddess.
The book received mostly critical acclaim, won the Goodreads Choice Award in 2011, and appeared on several bestseller lists. The book continues Riordan's use of third person narration, where chapters are from the point of view of one of the main characters, switching between Percy, Frank, and Hazel.
The book was first published in hardcover on October 4, 2011 by Disney-Hyperion with a cover designed by illustrator John Rocco. After an initial hardcover printing of three million copies, the book has since been released in paperback as well as an audiobook and e-book, and has been translated into 37 languages.