Clarice had taken the escalator to the higher floor to try and keep an eye on the suspicious group of men below. It was obvious that they were tracking her.
"I'm being followed, Dr. Lecter," she said, lowering her voice a little as she spoke into the phone. This was turning into a dilemma; she could decide to leave now, but would they follow her away, knowing that Lecter was probably here? It was him they were after. Verger had no interest in her, except as an object he could dangle in front of Hannibal. Clarice was bait, and now she knew it. She should have known it all along. Coming here was a big mistake.
"Please listen to me..." she began, trying to think of the best way to get Dr. Lecter and herself both out of there unharmed. It would not be pretty if Verger did get his hands on him. And it would be her fault.