Courfeyrac is no fan of leeches either, mostly leeches indicates sickness, and sickness indicates death. Also, they are just straight up gross. But he understands the necessity, and if Joly really thinks they would help...

"Yes, the guide." A pleasant change of topic, indeed. He waves the guide under Joly's nose. "All of the plants in the museum are listed here. And I'd wager there will be quite a selection to choose from. Perhaps something which can ease Mademoiselle's pain and suffering."

He smiles at Venus, trying to be supportive. Then, he catches the discussion of Gavroche. "Yes, Venus. I am told Gavroche was here."