Ramasus System
From Warhammer 40k - Lexicanum
The Ramasus System is a system of Imperial space, located at the edge of the Pariah Nexus.[1]
The system was attacked by the Necrons during the War in the Pariah Nexus, with the xenos invading the shrine moon Alectia. The Sisters of Battle stationed on Alectia fought almost to the last against the Necrons, until the few survivors were relieved by Battle Group Kallides.[1]