Halo: Silentium

In the last years of the Forerunner empire, the Flood arrives in overwhelming force and internal fractures have left civilization's defenses crumbling. The Ur-Didact and the Librarian — husband and wife, each bearing the cost of decisions they could not take back — stand at the center of a conflict whose resolution requires one of them to commit an act that cannot be undone. Greg Bear's third and final Forerunner Saga novel delivers the answers the trilogy has been building toward with appropriate weight.

Euan Morton narrates the conclusion with a solemnity that matches the material's tragic scope, his voice carrying the accumulated grief of a civilization choosing how to end rather than how to survive. At just under eight hours, Silentium is the most compressed of the trilogy's entries, its brevity matching the finality of what it depicts. An emotionally powerful conclusion to the Forerunner Saga.