The release of Halo: Silentium is near (19 March 2013), This will be the latest installment in The Forerunner Saga, 

 Tor Books and 343 Industries are working together to bring Halo fans free additional content, Including the chance to gain XP, From today and up until release they will be sending out encrypted communications via HaloWaypoint.com bulletins and within the forums.

Halo: Silentium will be the third and final novel in the saga written by Greg Bear. The trilogy has focused on the Forerunners, 100,000 years before the Human-Covenant war.