The Dark Tower: Treachery

The Dark Tower: Treachery is a monthly, six-issue comic book mini-series, a prequel spin-off of Stephen King's sci-fi western novel series The Dark Tower, the first issue of which was published September 10, 2008. It is the third of five such miniseries based on those novels, following the 2007 mini-series The Dark Tower: The Gunslinger Born and the 2008 mini-series The Dark Tower: The Long Road Home. The series is written and illustrated by the same creative team as The Gunslinger Born and The Long Road Home, which includes writers Robin Furth and Peter David, and illustrators Jae Lee and Richard Isanove. Whereas The Gunslinger Born was largely based on the events of The Dark Tower IV: Wizard and Glass, Treachery, like The Long Road Home, consists mostly of new material not found in any of the novels.

The story depicts The ka-tet of Roland Deschain, Alain Johns and Cuthbert Allgood dealing with the events following their return to Gilead from Hambry, including the toll that Maerlyn's Grapefruit has taken on Roland's health, his obsessive desire to continue peering into its depths, and the search for John Farson and the Big Coffin Hunters.