A smouldering stone is a stone dropped by Cerberus and much more rarely, hellhounds. It can be used to upgrade the dragon axe, dragon harpoon, and dragon pickaxe into the infernal axe, infernal harpoon, and infernal pickaxe, respectively. These infernal tools have a 1/3 chance to instantly process and destroy a resource (granting half of the normal processing experience gained in Firemaking, Cooking, and Smithing, respectively), begin with 5,000 charges, and will function as their dragon variant when all charges are depleted. Another smouldering stone or another dragon tool of that type must be used to recharge it. At current Grand Exchange prices, one charge costs approximately 621.33 coins.
Skills cannot be boosted to create infernal tools using the smouldering stone; the player must have the required base levels of either 85 Firemaking for the infernal axe, 85 Smithing for the infernal pickaxe, or 85 Cooking and 75 Fishing for the infernal harpoon. The conversion process is permanent, and the upgraded tools are untradeable.
The stone can be dropped by hellhounds as well, although at a much rarer rate. When dropped by a hellhound, a message will appear in the player's chatbox: Something hot drops from the body of your vanquished foe.
Products
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Item sources
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