Lord Deris is one of the three elemental bosses found in the Celestial Dungeon. He is located in the small room attached to the Earth room in the dungeon. The Earth room requires level 80+ Woodcutting and Firemaking to enter, and the room containing Lord Deris requires a sacrifice of 3 Red dolphins (cooked), 3 Sacrite ores, 15 Marbury logs, all of which are non-tradeable, so player must either forage these items from the dungeon (which requires a level of 100+ Fishing, Cooking, Mining and Woodcutting), or alternatively players can receive the items as drops from Celestial earth, water and fire warriors. The second option is a lot longer than the first, since the resources are an uncommon drop from the monsters, and they only drop one resource each time (3 each time from bosses).