In recent years the crews of the mysterious House Henghyoke, the House of the River Otter, have acquired a reputation as the most bloodthirsty and rapacious pirates anywhere in Barsaive. The reputed cruelty of Henghyoke’s river raiders exceeds that of Theran slavers. Henghyoke’s riverboats have raided settlements and attacked vessels along every mile of the Serpent and its tributaries, and even prey upon the fierce t’skrang of House Ishkarat. Typically, Henghyoke river raiders descend on their victims like thieves in the night. Captives seized in their raids never return, and the raiding parties vanish without leaving any clue to their movements. They seem to strike at random from their secret base, presumably located somewhere on the Serpent River. No known village pays House Henghyoke tribute or claims association with the mysterious aropagoi.