"It's how I knew," he says. As though this were a common thing that happens. Sometimes you just smell that your hunting partner is off, and then you confront them over it.

He raises an eyebrow. Somehow, that's not the line of questioning he expected, but after a half-shrug, he answers.

"I can track by scent."

So. A lot. If she left this room without telling him where she was going, he could probably locate her. This may or may not explain how he occasionally...shows up. Looking for Dean or Jaskier or Julie at the precise place they are, without having ever asked.