Sliske

Sliske is a Mahjarrat loyal to Zaros who disappeared into hiding. Azzanadra describes him as: "Sliske the serpent-tongued, who delves the shadows"." Zemouregal calls him: "One of the most powerful of our numbers. Sliske has particularly strong shapeshifting capabilities and powers over shadows. I would love to catch this guy, but he's a slippery fellow."

Abilities
Not much is known of Sliske's powers. He is known for "delving the shadows," possibly due to his "powers over shadows," as Zemouregal mentioned in his notes. Sliske's "power over shadows" may also mean that he has great proficiency with the Ancient Magicks shadow spells. Azzanadra has said of Sliske, "An ally he may be, but I did not become master of my Lord's legions without being sure of the powers wielded by those close to me. Sliske is one whose actions can be seen each and every day in the smallest of this world's details." He is thought to be the stranger in The Fall of Six who granted the Barrows brothers their abilities and reanimated their spirits;the stranger in the tale is described as "delving into the shadows at its (the camp's) edge". Suggested by the fellow Mahjarrat's comments, it is possible that Sliske is intelligent and very cunning, as he was known to Azzanadra as "Sliske the snake-tongued" and a "slippery fellow" to Zemouregal.

Current and future activities
Sliske's current whereabouts are unknown; however, a passage in a recent letter from the Chaos Elemental, known for hinting at future updates, seems to be referring to him: "That's where the shadows are shadowed, and even the delvers don't dare."

Although unconfirmed, given the fact that Sliske has "power over shadows", as well as his possible involvement with the Barrows Brothers, a very likely location where Sliske is hiding would be Morytania. Morytania is in constant darkness, making it an ideal location for Sliske and his "power over shadows".

Further implying that Sliske is involved in future content, Mod Mark of the Runescape Content team said in a Q&A session that Sliske will not have his own quest, "but you may well call on his support in the near future."

In a Q&A session on 11 February of 2010 Paul Gower stated that Sliske would make an appearance in the Grand Master Mahjarrat quest.