Grisham was part of the bear beastmen tribe like Jared Bando(The Major in the War Ursa battalion that Frost met shortly after entering the Glacial mountains), strong and powerful. He was currently carving up the corpse of a polar bear monster with incredible finesse as though its muscles and flesh were made of butter.
Kamey didn't call him over the moment they arrived but chose to wait until Grisham was done carving so as to not interrupt his concentration. Frost was thus able to watch Grisham's deft movements with appreciation, finding the man to be very skilled with his blade.
A few movements later Grisham was finished, and he noticed Kamey waiting quietly with a group he didn't recognise. He smiled lightly, appreciating her forethought in not interrupting him, she had learned from her mistakes.