Most Umbra-traveling Garou journey through the living spirit world. This sinister rite allows Garou to cross into the world of the Dead: the Dark Umbra.
During the ritual, the Garou must sacrifice a living creature (usually an animal, though there *are* some rumors...), then attempt to enter the Umbra normally. If the rite and the entrance both succeed, the Garou follows the dying animal's spirit into the Lands of the Dead. If the rite is botched, then the Garou becomes stuck between the physical world and the Underworld.
[Type: Mystic Rite / Silent Strider & Silver Fang Theurges]
(Source: Silent Strider Tribebook)