"Surely to-morrow will do," I protested.

"To-morrow never does," she retorted.

"As you will," said I, knowing argument was hopeless.

Meanwhile the concierge was 'allo'-ing lustily into the telephone.

"I ought to have stuck to head-quarters," she said, moving away into the lounge. "It's the first time I've ever mixed up business and--other things. Anyhow," she smiled, "I've had an adorable day. I'll remember it in Arras."

"Arras?"

"Roundabout." She waved vaguely. "I'll know my exact address to-morrow."

"Please let me have it."

"What's the good unless you promise to write to me?"

"I swear," said I.