"A man's letter, Miss Gray," said Garth unexpectedly.
"Quite right," said Nurse Rosemary. "How did you know?"
"Because it was on one sheet. A woman's letter on a matter of great importance would have run to two, if not three. And that letter was on a matter of importance."
"Right again," said Nurse Rosemary, smiling. "And again, how did you know?"
"Because you gave a little sigh of relief after reading the first line, and another, as you folded it and replaced it in the envelope."
Nurse Rosemary laughed. "You are getting on so fast, Mr. Dalmain, that soon we shall be able to keep no secrets. My letter was from—"
"Oh, don't tell me," cried Garth quickly, putting out his hand in protest. "I had no idea of seeming curious as to your private correspondence, Miss Gray. Only it is such a pleasure to report progress to you in the things I manage to find out without being told."
"But I meant to tell you anyway," said Nurse Rosemary. "The letter is from Sir Deryck, and, amongst other things, he says he is coming up to see you next Saturday."
"Ah, good!" said Garth. "And what a change he will find! And I shall have the pleasure of reporting on the nurse, secretary, reader, and unspeakably patient guide and companion he provided for me." Then he added, in a tone of suddenly awakened anxiety: "He is not coming to take you away, is he?"
"No," said Nurse Rosemary, "not yet. But, Mr. Dalmain, I was wanting to ask whether you could spare me just during forty-eight hours; and Dr. Brand's visit would be an excellent opportunity. I could leave you more easily, knowing you would have his companionship. If I may take the week-end, leaving on Friday night, I could return early on Monday morning, and be with you in time to do the morning letters. Dr. Brand would read you Saturday's and Sunday's—Ah, I forgot; there is no Sunday post. So I should miss but one; and he would more than take my place in other ways."