Eldridge Bonecrusher is a Gurahl who took over Thunder Jack's den realm.
Bonecrusher's daughter was killed by a Garou, and he was unable to bring her back. He retreated into the den-realm of his friend Thunder Jack, ostensibly to keep it safe while Jack was absent, and fell into Bhernocht. He intended to sleep the rest of his life away, and Thunder Jack warded the realm to keep out intruders.
Thunder Jack's daughter Maggie Two-Woman, with the help of Tom Bedford, eventually managed to access the den-realm and wake Bonecrusher. As Tom was kinfolk of the same tribe that murdered his daughter, Bonecrusher threatened to kill him, but decided in the end to let him live as a favor to Maggie.