The Red-maid is lost -- or so it seems -- to the corruption wrought upon her land at the hands of corrupt Men. These Men stand before her, ready to sacrifice themselves for the Red-maid, and they deserve this fate. However, the nobility of your blood will be a greater reward for her, and when these Men fall before her willingly, she will see that the noble are attempting to destroy her and ignoble keeping her this way.
The Créoth will sacrifice themselves to the Red-maid to restore her strength and connexion to the corruption within the swamp. These Men deserve nothing better than death, and your presence in standing against the Red-maid may alert some part of her to the folly of her ways. You should let these Men die and strengthen the Red-maid, then defeat her. Perhaps a piece of her will understand that the corruption has grown too great, and she must return to the natural world of which she was once a part.