Ysmault
A dead world soaked in blood — the Red Lanterns' fortress.
Ysmault is where rage lives. This desolate planet in Sector 2814 was the site of an ancient atrocity — and Atrocitus chose it deliberately as the Red Lantern Corps' base. The red Central Power Battery squats at its heart like a wound, and the Blood Ocean surrounding it is exactly what it sounds like.
Red Lanterns don't train on Ysmault; they suffer on it. New recruits are thrown into the Blood Ocean, where their rage is tested and their hearts are replaced by the red light itself. The planet's very soil remembers the Massacre of Sector 666 — Ysmault doesn't just house the Red Lanterns, it justifies them.
First appearanceGreen Lantern (vol. 4) #25 (2007)
Notable featuresThe Blood Ocean, the red Central Power Battery
StatusActive — fortress of the Red Lanterns