Thud. Cecilia felt something internally. The feeling one got when they realized they might have to break some bad news. In her line of work she was used to it, but in said line of work, it was usually followed up with some form of comfort. The leg is broken, but we're going to take good care of you. You're in the right place. That kind of thing didn't apply. Because the explanation was immediately very clear to Cecilia, and it felt somehow wrong to force it on Kate.
"It's... entirely possible that it's wrong," Cecilia offered anyway. "Reginald himself said he suspected a trick, or some convenient matches. It's definitely something we'll be talking about tomorrow. If it matches for the majority, then..." She gestured vaguely. "Then we deal with it, and figure out where to go from there." That felt terribly inept. "You... do you know anything about your biological parents?"