The Dead Boy, the Unsolvable Maid

Ant-Man Scott stood inside the vibranium vault, holding his suit helmet as he stared blankly ahead. Rather than a vibranium vault, the spacious interior felt more like a vibranium repository. The inside of the vibranium vault had been arranged like a modestly sized room. That was right. Inside this massive safe made of priceless vibranium was... a room! And a very ordinary single room at that. Inside the single room.