The Lightning Thief
A graphic novel based on "The Lightning Thief" was published on October 12, 2010. It follows a shortened version of Percy's adventures in "The Lightning Thief" with full-color drawings. A graphic novel based on the second book in the series, "The Sea of Monsters" was released on July 2, 2013. Another graphic novel based on the third book, "The Titan's Curse" was released on October 8, 2013. The fourth book in the series, "The Battle of the Labyrinth"'s graphic novel was released on October 2, 2018. The last book of the series, "The Last Olympian"'s graphic novel was released on August 13, 2019.