so i was going to make tree house next to a lava spout that i got rid of with water. when i finished my tree house i was geting rid of some leftover cobblestone & obsidian from the lava spout and when i got i smashed a cobblestone water went down some hole and when i went down i found a door and when i open it their was small little pourly made house with a bed a crafting table and furnace witch is odd because i didn't make that and if i would i would remember it so to the point any one else thinks thats weird
strange underground house