Situated far in the galactic north-west, the Stryken System's principal planet is the smoke-wreathed Forge World of Stryken Primus. The system's industrial heart is protected by a ring of three Knight Worlds in close proximity -- Stryken II, IV and V -- and each is home to several knightly houses. These verdant planets were once Maiden Worlds of the Eldar. The ancient tribes of Exodites that once dwelt there, herding the many different species of giant reptiles and bipedal carnivores, were ruthlessly driven from these worlds by the knightly houses that were established shortly after Mankind's arrival.