"Not the same kind of walking," Prescott smiled. "I want to stroll to-night and talk. But if I must go alone, then I shall have to think."

"Don't attempt hard work after hours," advised Holmes.

"Such as walking?"

"No; thinking."

Dick finished his meal and stepped outside in the air. The first to join him was Lieutenant Morris.

"Feel like taking a walk in the moonlight?" Dick asked.

"I'd be delighted, Captain, but to-night I'm officer in charge at the company barracks."

"True; I had forgotten."

Other officers Dick invited to join him, but all had duty of one kind or another, or else home letters to write.

"Did I hear you say you were going to take a walk, Prescott?" asked Major Wells.