Where'd the Lights Go? (火が消えちゃった…, Hi ga Kiechatta…, lit. The Fire Vanished…) is an event in Tomba!.
Get some light for the thief in the Dwarf Village.
Go back and talk to the dwarf who is operating the fire in the middle of the village. He will give Tomba a torch. Head back to the prison and use the torch to light up the room again. The event is cleared.