 In the retreat from Caradhras, Boromir proved his strength as he and Aragorn forced a way through shoulder-high snowbanks back down the mountain.The Fellowship then passed under the mountains through the caverns of Moria where Gandalf was killed, and Aragorn became their new guide.At the borders of the Elven realm of Lothlórien, Boromir was unnerved by the thought of entering, pleading with Aragorn to find another way "though it led through a hedge of swords"; he cited stories of elvish witchcraft, and the "strange paths" they had already taken which had caused Gandalf's death.