The arch of Tantalus is an entrance to the Jungle created from and surrounded by the bones of many creatures who met their demise in the Jungle. This is the place where Gregor and his party first encountered Hamnet, Frill, and Hazard. It is allegedly named for an Overlander who committed a great crime. As an eternal punishment, he was placed in a pool of water surrounded by branches filled with fruit. Though he had great thirst, the water would recede as he bent to drink it. When he reached up to the fruit, the branches rose out of reach. Also an obvious reference to the Homeric legend of Tantalus found in the Odyssey.