Halo: Epitaph is an upcoming Halo novel by long-time series writer, Kelly Gay, which was originally set to release in late 2023 before being pushed back to January 2, 2024. The book was formally announced during the Canon Fodder live event at the Halo World Championship on October 21, 2022, in a panel focusing on the discussion of how Halo multiplayer maps fit into canon. Appropriately, the novel's name is a reference to the Halo 3 multiplayer map Epitaph.
Halo: Epitaph will feature the continuation of the story of the Ur-Didact and is set after Halo: Escalation's The Next 72 Hours arc from 2013 during which he is composed following a conflict with John-117 and the rest of Blue Team.