The Mark of Athena is an American fantasy-adventure novel written by Rick Riordan, based on Greek and Roman mythology. It was published on October 2, 2012, and is the third book in The Heroes of Olympus series, a sequel of the Percy Jackson & the Olympians series. It is preceded by The Son of Neptune and followed by The House of Hades. The novel is narrated in third-person. The Mark of Athena received positive reviews from critics for its humor, characters, and mix of elements. Criticism was focused on its slow pace, action, and different perspectives. It has since been translated into many languages and released as a hardcover, e-book, audiobook and paperback. Source: Wikipedia (en)