In two minutes the carriage was dismissed, and Margaret was seated in the ambulance, and on her way down to the city again.

"You will be very careful who you speak to," the lady began; "you will dress in the plainest possible manner, wear no ornaments, and, of course, high necks and long sleeves. Your hair—are those waves natural?"

"Yes'm!" said Margaret humbly, and was about to add that perhaps she could straighten them out, but checked herself.

"Well, dress your hair very snugly, wear clean collars, and don't let your clothes drag. It looks untidy. Is that dress quite plain?"

Margaret threw back the thin mantle she wore, and showed a gray dress of nunlike plainness.

"That will do," the lady said approvingly.

Here they turned into the square, and got out at the door of the hospital Margaret had visited the day before. She was introduced to the officer of the day, received an astonished bow from the surgeon-in-charge in passing, caught a glimpse of Doctor A——, and was escorted to her ward.

"Be you the new lady nurse?" asked Long Tom.

"So it seems; but I am not quite sure," she said.