Hel is an Elder worshipped by the ancient Norse people as a goddess of death. Her shadowrealm of Niflheim was destroyed by Dr. John Dee when he killed Yggdrasil but she survived, swearing revenge. Hel wields a long metal whip as her primary weapon when in battle. Mars and Odin are her uncles, alongside whom she fought on Alcatraz against Xolotl and the beast imprisoned within the island. She died hand-in-hand with her uncle, Odin, as they sacrificed the rest of their aura to repel a group of Anpu and Monokerata ready to take rampage on their group trying to awaken the Old Spider, Areop-Enap.