How on earth did this slip under the radar? Halo Waypoint have announced a new Halo novel written by John Shirley that will cover the early days of the Covenant.
From Halo Waypoint-
Simon & Schuster is proud to announce a new Halo novel from John Shirley, releasing on November 4, 2014!
Witness an untold chapter in Halo lore as John Shirley’s Halo: Broken Circle takes us to the dawn of the Covenant and the fateful first bargain between the Prophets and the Elites. Broken Circle will explore an Elite splinter group rebelling against the Covenant in its earliest days, a brave Prophet caught in the machinations of the new Covenant leadership, and the root of the betrayal that would ultimately shatter the Covenant during events seen in the blockbuster Xbox game Halo 2.
Here’s the original link on Waypoint