Agrellan

Agrellan is an Imperial hive that the T’au captured in a single day and renamed Mu’gulath Bay. Under its T’au name, the hive served as the Third Sphere gate into the Dovar cluster.

Following the fighting at Prefectia, the Imperium returned to the hive in force. The T’au held it until Exterminatus was carried out against the T’au sept, which burned; a single shielded city was the only exception. The Damocles Gulf was set alight by the conflict.

Agrellan and Mu’gulath Bay are two names for one location, the first Imperial and the second T’au. It should not be confused with Prefectia, which is a separate location.