The River of Flame is appropriate next to The Chaos Sanctuary. Travel to the very best right of the screen past Hadriel and beyond the bridge. The Chaos Sanctuary includes a cross-like shape and special mechanics which include 5 Seals and 3 Seal Bosses. When all 5 Seals are opened and all sorts of 3 Seal Bosses are dead, Diablo spawns in the center star of The Chaos Sanctuary. There are also...