Thanks everyone. They did have a good time!
I can confirm Muskwa is fine. About 10 last night, there was a huge commotion at the gate. Not fight sounds, but not their usual barking at someone in the road. So I went running outside to see what the heck was up. Stuart and Muskwa were home! The expiditer's truck broke down in town and someone had to come get him and the camp supplies. So Stuart got to come home for the night. He was here for a whole ten hours! He was going to leave Muskwa here, just in case, but Muskwa was having none of that. He was acting perfectly normal and if something does come up, we can have him home and to the vet that day. Someone comes in and out of camp frequently or I can meet Stuart in the closest village(80 miles from camp, 4 hours drive from home) and bring Muskwa home.