Opening sinister chests

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Opening sinister chests
RequirementsYanille.png
Skills
49 AgilityAgility icon.png
58 MagicMagic icon.png recommended
Items
Quest
Watchtower recommended
Other
50 ConstructionConstruction icon.png and 40 MagicMagic icon.png for Teleport to House and player-owned house in Yanille (optional)
Results
ProfitExperience gained
388,500None
Inputs (2,683,560)Outputs (3,072,060)
90 x Sinister key.png: Inventory image of Sinister keySinister key (2,672,280)
60 x Law rune.png: Inventory image of Law runeLaw rune (11,280)
90 x Grimy torstol.png: Inventory image of Grimy torstolGrimy torstol (672,390)
90 x Grimy avantoe.png: Inventory image of Grimy avantoeGrimy avantoe (136,890)
90 x Grimy kwuarm.png: Inventory image of Grimy kwuarmGrimy kwuarm (121,230)
90 x Grimy irit leaf.png: Inventory image of Grimy irit leafGrimy irit leaf (67,050)
180 x Grimy harralander.png: Inventory image of Grimy harralanderGrimy harralander (118,620)
270 x Grimy ranarr weed.png: Inventory image of Grimy ranarr weedGrimy ranarr weed (1,955,880)

The Sinister chest, located in the Yanille Agility dungeon, always rewards nine herbs when opened: three grimy ranarr weed, two grimy harralander, and one each of grimy torstol, grimy irit leaf, grimy avantoe and grimy kwuarm. Opening the chest requires a Sinister key, and the key is used up when the chest is opened. Depending on the price difference between the keys and the herbs, it can be very profitable to buy sinister keys, open the chest, and sell the resulting herbs. The price of sinister keys jumps around a lot, but it's not uncommon to buy them instantly for far below the market price.

Start out by teleporting to the Watchtower, go down the ladder, and run east to the dungeon entrance. Slash the web, go down the stairs, and across the Agility ledge. Enter the obstacle pipe immediately next to you and open the chest at the end of the room. You will be poisoned. Open the chest 2-3 times (it takes about 8 seconds each). Depending on the price of the grimy harralander, it may be worthwhile to drop them so you can use more keys per load. When you've used all of your keys, teleport out using your choice of teleportation jewellery, bank the herbs and repeat. Each trip takes approximately two minutes.


Due to constantly changing prices on the Grand Exchange, some information in this article may or may not be current.
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