Even now, there is a strange disconnect when Caster refers to her as Master, a delay where she expects Grandfather to answer and realizes that he's waiting for her reply. "Rider again referenced his worthiest foe and only companion. Saber still seems eager to face him in combat again. They aren't allies, but they seem to respect each other." Which, again, hardly holds any clues about either of their identities. A good deal of the heroes she's encountered in her reading love nothing more than fighting an opponent worthy of all their power and skill. And it makes sense that such heroes would be drawn towards a contest such as this.

Another fragment of that conversation strikes her. "I had no clear view of Lancer's Master, either, but from Rider and Saber's remarks, it seems likely that she's a young girl."

You wouldn't hurt a child, if she stood between you and your enemy?, Saber had asked. Perhaps Grandfather isn't the only one to have adopted this ploy. Perhaps this ploy might even be effective. Perhaps all the Masters will be young girls, or will keep young girls at their sides.