Spawned only recently within the Fifth age by Ghadrah in the sewers beneath the City of Evernight, Srassk was instrumental in the downfall of the once prosperous city. Allying with Ritzel the Rat Queen, Srassk unleashed a violent swarm of wererats and Illithid spawn to the surface of The Shadowfell, eventually overrunning much of the city in the ensuing chaos.