So, it's the middle of winter, would it be plausible for luperci to be able to dig a hole for the body in the frozen ground? Could they use fire or boiling water to thaw the ground and make it easier to dig through?
I think it would be entirely plausable for a Luperci to be able to dig, or figure out a way to dig through the earth. The area 'Souls is based off doesn't have perma-frost, I don't believe, so once there was a good enough hole it probably wouldn't be too hard for Luperci claws to dig through. Fire would work to warm it enough to start said hole, though!
Players with more wherewithal than me can totally correct me here. <3