Sinister key

The Sinister key is used to unlock the chest found in the Yanille Agility dungeon. Other than by trading other players, Salarin the Twisted drops this key at a 1/13 chance and is the only way to obtain one. Upon using the key on the chest, the key disappears.

Unlocking the chest with the Sinister key rewards the player with 9 Herbs which when identified are the following:
 * 1 Torstol
 * 2 Harralanders
 * 1 Avantoe
 * 1 Kwuarm
 * 3 Ranarr Weeds
 * 1 Irit Leaf

From identifying and making all the best potions possible with these herbs, you will gain 1000.5 Herblaw experience.