Log Horizon

is a Japanese novel series written by Mamare Touno and illustrated by Kazuhiro Hara. It began serialization online in 2010 on the user-generated novel publishing website Shōsetsuka ni Narō, being later on acquired by Enterbrain and published as a light novel in Japan since 2011. Yen Press began publishing an English translation in 2015. The series follows the strategist, Shiroe, and the other players of the long-lived MMORPG Elder Tale after they find themselves whisked away into the game world following a game update.