"It was believed that either the defeat of Manus or Gwyn's sacrifice slowed the Abyss' expansion." From the look of Oolacile though, it was hard to say, not that she was the best to ask. It wasn't uncommon for the knights of Gywn to be dispatched alone on missions, but when it came to anything truly serious the four were sent together. The rescue of Princess Dusk had been incredibly important but Artorias was the only one of them that could have survived that contact with the Abyss. She couldn't decide if she thought that he could have survived if he had the others at his back or if they would have all perished quickly, but it was something that ate her up inside far too often.
"Perhaps I delude myself in an effort to assuage my guilt for leaving, but I have faith in Gwynevere and the others to ensure that the Abyss will not consume all." It all had to mean something, Artorias' sacrifice, Gwyn's, it couldn't have all been for nothing. She refused to entertain the thought that it might. "But there is very little you or I can do about it now. It seems here we have a chance to be of use again."