Just as promised, Greg Bear's Halo: Cryptum is now available for purchase on your reading device or, dare we say, at your favorite book store -- as if people still buy books! Cryptum is the first of three planned novels focusing on the Forerunners, the race of aliens preceding humans and the Covenant in the Halo universe. The books will finally shed some light on what pushed the Forerunners to extinction and offer greater detail on the Precursors, the other super advanced race which preceded the Forerunners.