The Garou can call upon the past lives of other Garou to return a favor owed to the Glass Walker tribe, even if the debt was made centuries ago. Using this Gift will cause another Garou with the Past Life Background to become possessed by the ancestor whom the Glass Walker summons. The living Garou must be of the same tribe as the ancestor who is called (a Glass Walker cannot make a Bone Gnawer summon a Silver Fang ancestor). This Gift is taught by any long-lived spirit, such as a turtle or an elephant, and the Glass Walkers often have such spirits witness any business transactions they make with other Garou.
The Garou spends one Willpower pint and rolls Gnosis against a difficulty of 10 minus the target's Past Life Background rating. If there is no Garou with Past Life present, this Gift will not work; it requires a Garou with deep connections to her ancestors to act as a conduit. If successful, the desired ancestor is summoned and possesses the target. This ancestor will then perform a duty to make up for a favor the Glass Walkers did for him in his lifetime. The Central House keeps vast records of every debt owed the tribe. It usually requires a committee vote to summon one of their debtors and thus use up the favor owed. However, Dons who learn this Gift are considered to have the power to use it whenever desired, although Dons who abuse it may wind up being voted off the board, so to speak. The player should be allowed to create the original debt condition and the debtor. 'Grom Wyrmfoe of the Silver Fangs owes the Glass Walkers big, because they helped him root out vampires in Moscow in the late 1600s. Well, my character feels it's about time he repaid the favor by helping me kill that damn Gangrel.' The Storyteller, however, is the ultimate arbiter of this Gift. It should be used to enhance a story, never to simply power game. If the Storyteller feels the player is asking a greater favor than what was originally given to the ancestor, he is free to have the ancestor deny the call. Glass Walker characters should also realize that most Garou do not like being puppets for their Past Lives simply at the whim of some damn city Urrah. They will usually try to get revenge at some later date -- to do so immediately is to insult the ancestor.