Grimslaak was an ultroloth agent of Yrkhetep in Chondath in 1358 DR.


In 1358 DR, Grimslaak killed and replaced the innkeeper of the Inn of the Five Crown in Arrabar in order to spy on the meeting of the Sisterhood of the Oaks, the Lightblades, the Sunshafts, and the Windriders, where they organized their battle plans against the troops of one of the Yrkhetep's minions. Eventually he sent three yagnoloths to kill possible disturbers.[1]



  1. Bill Connors, Christopher Mortika, Rick Reid, Scott Bennie, John Terra, Jay Batista, Roy Schelper, Rick Swan (May 1988). Swords of the Iron Legion. (TSR, Inc.), pp. 32–33. ISBN 978-0880385596.