Fate/Poterya Vol 10 Chapter 5

The first sign of a change was that the nights became quiet. There were no sounds, no nonhuman attackers, it was completely silent. Sieg stated that the likely reason was a more powerful nonhuman who controlled the area and had eliminated all competition. This was how they found themselves one night gazing up at the silhouette of a massive crow, as they were discovered by Gransurg Blackmore.

At first he was uninterested in them, but Jeanne made the fatal mistake of defending herself from his shadow with her faith. This caught his interest, and from then on it became a deadly game of cat and mouse, the Dead Apostle taking to the skies and hunting for the pair. They found refuge in the one place Jeanne was certain he would not look, his own treasury. This was not the case, however, and she soon found herself forced to condense the entirety of her faith into a shield, and pray that she could wait out the monster who stared at them from across the room. She did not eat for four months and yet she did not starve.

It was like that Narbareck found them. Huddled up alone, protected only by the strength of Jeanne's faith. To Jeanne Narbareck was like a prophet, leading her out of captivity. She had no knowledge of Narbareck's involvement with her parents, but Narbareck did. Whether a foreign emotion like pity or regret influenced the director's decision or whether it was simply two promising candidates for her division is a mystery she will take to her grave.