Grimm is a Tiefling exile from Cheliax who has dedicated his life to bringing criminals and cultists to justice as a paladin of Abadar.
Grimm met the Professor during a mission to destroy an enclave of the cult of Norborger. The Professor sought a powerful relic the cult had stolen, a mysterious red bladed dagger. Grimm helped to crush the cult and turned the dagger over to the professor.
Upon hearing of Lorimorr's death, Grimm has set out for Ustalav to attend the services and see if he might bring justice to the haunted lands.