No one knew where it came from or how long it had been their it had been pure dumb luck that it was found. For as long as everyone knew the sewers were a dangerous place full of cannibalistic and carnivorous monsters that were in a never ending war with each other. When one day a pair of adventurer's sent to investigate the change in the sewers found something they never expected a dungeon...and that was the start of the dungeon in the sewers...