Introduction: Halo: Silentium (The Forerunner Saga #3 , Halo #11) In the last years of the Forerunner empire, chaos rules. The Flood鈥攁 horrifying shape-changing parasite鈥攈as arrived in force, aided by unexpected allies. Internal strife within the ecumene has desperately weakened Forerunner defenses. Only the Ur-Didact and the Librarian鈥攁 husband and wife pushed into desperate conflict鈥攈old the keys to salvation. Facing the consequences of a mythic tragedy, one of them must now commit the greatest atrocity of all time鈥攖o prevent an unmatched evil from dominating the entire universe....