Board Thread:General Discussion/@comment-186.236.169.90-20130802221026/@comment-16900419-20130830151832

just be careful not to mount any other horses or shadowmere wont fast travel with you, the other horse will. this happened to me when i was doing the quest for frost. if he dies, remember the location he died and come back a few days later. if not, reload your last save. it could be a bug.