As he said that, he took out a thin golden chain. The amethyst pendants on it clanked together, forming an arc.

“This is, dowsing, right?”

It was a very primitive form of magecraft that I had learned about in class before. Apparently, it could be used for searching and investigation, and was used even outside of magecraft to look for underground reservoirs or oil.

“I have the same things I carried on me back then. I didn’t think that you would come, and so I ended up not being able to use it.”

My mentor shrugged.

That was to say, he originally planned on investigating the church as well. Then, he had come across me by accident, as I wanted to avoid the traveling merchants. I felt slightly embarrassed as I remembered how I once thought that it was fate that led us to meet there. But I would let that shameful thought be a secret forever. My mentor would most likely not notice anyway. …At most, I would just tell Reines.

My mentor had stared at it for the space of a few breaths, checking the arc made by the amethysts.

“This way,” my mentor said, turning around.

Lord El-Melloi II's Case Files: The Atlas Contract; Chapter 4, Part 3