Sounds like you hit the shoulder blade and did not get good penetration. Quartering away shots should be placed further back than what it appears you shot (i am only assuming here not sure exactly where you hit it).If you did not see it pass through, id say the deer shook it out rather than a pass through. Just another suggestion to add to those already mentioned.Your deer might have lived through the night. Sorry you didnt get it recovered.Strange things happen. I had a broad side pass through on a hog once that we couldnt find. It really sucks. Keep your head up.