Burial Mound 1

A burial mound has been erected here in the Plane of Shadow. A stone stairway leads deep into what might be a natural cavern, or might be a man-made burrow. Arcane symbols adorn the dirt floor and stone walls. The dead lie entombed here for their final rest.... or is it their final rest at all? Featuring a hidden door leading to a mysterious stone bridge over lava that you just know is going to be trapped, I mean come on. But there's a chest over there, so....