Night was falling upon the greatest city in the world. After night would come the myriads of electric lights in the huge Broadway signs—the surface cars creeping through the snow-fall like glow worms—the muffled pedestrians and the chain-tired taxis, with their well-groomed patrons, hastening to ballrooms, cabarets and theaters more luxurious than any dreamed of by Lucullus.

Into the tide of this forming stream of wealth, Drew’s taxi turned and ground northward through the drifts. The detective had given no definite address. He wanted the air of the Avenue for at least two blocks, before he reached the Stockbridge mansion. He signaled as a familiar corner came in view. He turned his overcoat collar up to his chin and stepped out, as the driver brought the taxi to a slow stop at the curb.

“Stay around the corner!” he ordered. “Stay, till I send word. Here’s a dollar for supper. Get that and wait!”

The driver touched his cap and reached for the bill. Drew swung northward, threw back his head, and plowed along the snow-laden sidewalk. Delaney’s statement over the telephone had stirred every drop of red blood in his body. Loris was in danger! This nerved him on. He clenched his gloved fists as he reached the first side street. He crossed the wheel-churned snow, with his lips gripped in a hard white line. His eyes raised in heavy-lidded scrutiny of the towering turrets and spires of the mansion. Lights shone from its windows as if in defiance to the powers of darkness which encompassed the dwelling.

A snow-crusted form stepped out from a basement shelter. Drew raised his arm as a barrier when a figure of a man lurched in his direction.

“Hello, O’Toole!” he blurted, recognizing the operative. “What are you doing here?”

O’Toole jerked a mittened finger in the direction of the mansion. “Our lad’s in there,” he said, thrashing his arms and flipping his finger for a second time. “Harry Nichols!” he explained.

“S—o! The whole case seems to be gathering again. Every clue leads this way now. What did you learn to-day?”

O’Toole yawned. “I got on the job early,” he said with frosty breath. “I waited. The lad came down. He got in a taxi and I’m right after him. First he went to the Quartermaster’s Offices at the Battery. Then he went to Governor’s Island. From there I trailed him to the Red Cross Headquarters. He ’phoned Gramercy Hill 9764, at least three times.”

“To the girl in the case?”