A two-headed, bearded serpent with a rounded snout that lives atop the World Tree. This serpent can fly through space, where it can carry celestial bodies if need be (as it grows vast in space). On Shem, it is still very large, and it appears to be swathed in smoke. It can carry spirits in its jaws and can commune with the ancestors of those who find it. It drinks blood that is freely given and nothing else. It can carry mortals to the planes.