Reillis

Reillis is a world charted within Segmentum Pacificus, though its precise position is no longer established and little further is recorded of its nature, peoples or governance. It is remembered chiefly for the Siege of Reillis, fought in the early years of the Great Crusade, during which the Emperor and his son Horus, primarch of the Luna Wolves, stood back to back against their foes; in the fighting, the Emperor is recorded to have saved Horus’s life. The world’s subsequent history remains unrecorded.