The girl sighed. "Very well—let's discuss. You begin."

"My month," said Spence firmly, "is almost up. I shall have to move along on Friday."

"On Friday?" If he had intended to startle her, he had certainly succeeded. "Was—was the arrangement only for a month?" she asked in a lowered voice.

"The arrangement was to continue for as long as I wished. But only one month's payment was made in advance. With Friday, Dr. Farr's obligation toward me ends. He is not likely to extend it."

She sat so still that he forgot how slippery the moss was and thought only of the growing shadow on her face.

"But, the work!" she murmured. "We are only just beginning. I wish—oh, I shall miss it dreadfully."

"'It,'" said Spence, "is not a personal pronoun."

"I shall miss you, too, of course."

"Well, be careful not to overemphasize it."

Her grey eyes looked frankly and straightly into his. Their clear depths held a rueful smile. "You are conceited enough already," she said, "but if it will make you feel any better, I don't mind admitting that I shall miss you far, far more than you deserve."