Machinery (Pollnivneach Slayer Dungeon) - The RuneScape Wiki

Two pieces of machinery were part of the contraption found on the lower level of Pollnivneach Slayer Dungeon. They were connected the central incomprehensible machinery and are surrounded by three spiky pillars and one smashed pillar. They were covered in markings and crystals also found in other objects in the dungeon.

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TIL the weird machine in the Pollnivneach slayer dungeon is

Pollnivneach Slayer Dungeon - The RuneScape Wiki