Leo knew he got no capital to support his claims but this, [He got a severe backlash, and you asked him to spy on one of your enemies. But things went wrong, and he ended up touching the fate of something scary, the one you are currently fighting against, correct?]
"So, you two are related?" William knew such an event wasn't known to anyone but to himself and the few who were with him back then. And they were all his friends. There was no way for a stranger that he never met or heard about before to know such details without a source. And that left him with the old man he met before.
[That's correct. And starting from there, we got interested in you]
"Why?"
[That's our business, we are very much interested in such things]
"What a bunch of weirdos you are!" William laughed, and despite what he showed on the surface, he was curious about Leo and what he said.
