HALO SILENTIUM (Forerunner Saga)

Halo: Silentium In the last years of the Forerunner empire, chaos rules. The Flood--a horrifying shape-changing parasite--has arrived in force, aided by unexpected allies. Facing the imminent collapse of their civilization, the Librarian and the Ur-Didact reveal what they know about the relationship between the long-vanished Precursors and the Flood. Full description