"Is Captain Halkett well?" she asked calmly.

"I think so, Sister. I saw him yesterday."

"If you see him again, would you say to him that Captain Gray is at the Château des Oiseaux recovering from an accident?"

"Yes, I will tell him, Sister; but he must be around here somewhere——"

"Here!" exclaimed Warner.

"Why, yes. Our aëroplanes have just passed through. A British Bristol biplane is among them in charge of a flight-lieutenant—Ferris, I think his name is. Captain Halkett ought to be somewhere about. Possibly he may be superintending the disembarkment and the erection of the sheds."

He pointed northwest, adding that he understood the sheds were to be erected on the level stretch of fields beyond the school.

"However, I shall give him your message, Sister, if I meet him," he said, saluted them ceremoniously in turn, cast another puzzled and slightly suspicious glance at Asticot, and rode away.

"I should like to find Halkett," said Warner. "I certainly should like to see him again. We had become friends, you see. Shall we walk back that way across the fields, Sister Eila?"

Sister Eila turned to Sister Félicité. Her color was high, but she spoke very calmly: