Ezra returned to the academy and back to his room. He stayed up listening to everything that each person was saying through the ants, but so far, there was no real information he could use, so he decided to call it a day.
Just as he was about to end for the day, he heard two people speaking to themselves through the ants. These two were talking to each other.
This meant that two of the people he had planted ants on had met and were now conversing.
When he listened carefully, he discovered that one was the librarian, but he could not recognize the voice of the other person, though he felt he had heard it somewhere before.
Ezra decided that the best course of action would be to listen to their entire conversation and see what they were talking about.