UNSC Edge of Umbra

The UNSC Edge of Umbra was a United Nations Space Command Prowler during the Insurrection.

Background
In 2503 the Office of Naval Intelligence discovered that Lyrenne Castilla, the second wife of then-Captain Preston Cole, was a high-ranking member of the insurgency. ONI suspected that Cole may have unknowingly or even actively collaborated with Castilla, and as such decided to have him returned to Reach for debriefing. Cole was confined to his quarters aboard his ship, the, until the Prowler Edge of Umbra arrived in the Lambda Aurigae system. The Umbra then transported Cole to Reach.

Trivia
The name of the Edge of Umbra is likely a reference to the darkest part of the shadow cast by a celestial body. An observer positioned in the umbra of a planet or moon is said to experience a total eclipse.

List of appearances

 * Halo: Evolutions - Essential Tales of the Halo Universe
 * The Impossible Life and the Possible Death of Preston J. Cole