A new hardcover book will help guide readers through the complex lore of Halo.

343 announced the book on the Halo Waypoint blog. It's titled Halo Mythos: A Guide to the Story of Halo, and the company is aiming to release it next October.

The blog is careful to note that this isn't a Halo encyclopedia. Instead it's a detailed walkthrough of expanded Halo fiction from 343 writers, which takes readers all the way from the Forerunners' conflict through Halo 5: Guardians. It promises a continuous narrative that will tie together pieces of the fiction from novels, comics, and live-action features like Nightfall. It will also feature more than fifty pieces of new artwork, commissioned specifically to illustrate the events of the Halo timeline.

343 is open about this being intended to make the lore of Halo more accessible to fans, seeming to acknowledge an occasional criticism of the opaque history in this fictional universe.

Halo 5: Guardians provided the latest in major plot developments for the series, as part of the Reclaimer Saga.