"You followed us?" she said, gaining time for her thoughts.

"Yes; I followed you. I saw you come here. I watched while he unsaddled, how he came up to you. What I could not see through the rock walls I could guess! And now . . ."

"Well, now?" she repeated after him, so that Patten must have marvelled at her lack of emotion. "Now what?"

"Now," he spat at her venomously, "I think I have found the fact to shut Roderick Norton's blabbing mouth for him!"

"I don't understand . . ."

"You don't? You mean that he hasn't done any talking to you about me?"

"Oh!" And now suddenly she did understand. "You mean how you are not Caleb Patten at all but Charles? How you are no physician but liable to prosecution for illegal practising?"

Could she use him or could she not? That was what she was thinking, over and over.

"Where is he?" demanded Patten a little suspiciously. "What is he doing? What are you doing out here alone?"

"He is asleep," she told him.