Sliske is a mysterious Zarosian Mahjarrat responsible for giving the Barrows brothers their equipment, and subsequently raising them as undead wights. He is referred to as "Sliske the serpent-tongued, who delves the shadows" by Azzanadra in Postbag from the Hedge 20, and appears as a mysterious figure in the crumbling tome and its expanded lore story, The Fall of Six.

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