A House located in the mountains in a subterranean fortress. Near House Vulcan. Adrius au Augustus and Lilath au Falthe were assigned to House Pluto. It was besieged and nearly destroyed by House Vulcan until Adrius took over and sealed both houses in the tunnels. There, House Pluto emerged victorious and cannibalized the dead to survive. They were the final house to be defeated by Darrow's coalition.