She swung about quickly, preceding him to the door and down the stairs. "I am sure Dorothy will come in to wait, if I ask her," she told Kirkwood in a high sweet voice. "I'm so anxious to know her. It's quite absurd, really, of her—to stand on ceremony with me, when her father made an appointment here. I'll run out and ask—"

Mrs. Hallam's slim white fingers turned latch and knob, opening the street door, and her voice died away as she stepped out into the night. For a moment, to Kirkwood, tagging after her with an uncomfortable sense of having somehow done the wrong thing, her figure—full fair shoulders and arms rising out of the glittering dinner gown—cut a gorgeous silhouette against the darkness. Then, with a sudden, imperative gesture, she half turned towards him.

"But," she exclaimed, perplexed, gazing to right and left, "but the cab, Mr. Kirkwood?"

He was on the stoop a second later. Standing beside her, he stared blankly.

To the left the Strand roared, the stream of its night-life in high spate; on the right lay the Embankment, comparatively silent and deserted, if brilliant with its high-swung lights. Between the two, quiet Craven Street ran, short and narrow, and wholly innocent of any form of equipage.

[VI]

"BELOW BRIDGE"

In silence Mrs. Hallam turned to Kirkwood, her pose in itself a question and a peremptory one. Her eyes had narrowed; between their lashes the green showed, a thin edge like jade, cold and calculating. The firm lines of her mouth and chin had hardened.

Temporarily dumb with consternation, he returned her stare as silently.

"Well, Mr.—Kirkwood?"