The Sea of Monsters is an American fantasy-adventure novel based on Greek mythology written by Rick Riordan and published in 2006. It is the second novel in the Percy Jackson & the Olympians series and the sequel to The Lightning Thief. This book chronicles the adventures of thirteen-year-old demigod Percy Jackson as he and his friends rescue his satyr friend Grover from the Cyclops Polyphemus and save Camp Half-Blood from a Titan's attack by bringing the Golden Fleece to cure Thalia's poisoned pine tree. The Sea of Monsters was released on April 1, 2006,[2] by Miramax Books, an imprint of Hyperion Books for Children[1][2] and thus Disney Publishing (succeeded by the Disney Hyperion imprint). It was generally well–received and was nominated for numerous awards, including the 2006 Book Sense Top Ten Summer Pick[3] and the 2009 Mark Twain Award.[4] It sold over 100,000 copies in paperback[5] with over one million copies total[6] and was released in audiobook format on September 6, 2006. The Sea of Monsters is followed by The Titan's Curse, the third book of the five books in the series. A film adaptation of the book, Percy Jackson: Sea of Monsters, was released on August 7, 2013.[7] The book is set to be adapted for the second season of the Disney+ television series Percy Jackson and the Olympians.[8]