Lagertha held Brant in her hands and saw how well he fought against the dark creature. She held him because his raw strength was fading away after he fought with her longsword. Lagertha turns around and notices Mundis transforming into something she never expected. Mundis transformed into what appears to be a human with a black longsword and black clothing for armor. He had a black cloak with a black mask; it was at that moment when all was revealed to the Wolf Queen.
The black clothing on the man with a blackened sword was enough proof that Mundis was a being who served Mephiles. The Demon Wolf hoped Lagertha would yield to him and serve him in making Midland the greatest of all kingdoms. The demons who served their king wanted Lagertha dead, and such treason would ruin the reputation of Midland’s king. The Wolf Queen turns back around to see how Brant is doing; he could not move or open his eyes.