A glance behind showed Kirkwood that already they had gained, the pursuing hansom having lost ground through greater caution in crossing the main-traveled thoroughfare.

"Good little horse!" he applauded.

A moment later he was indorsing without reserve the generalship of their cabby; the quick westward turn that took them into Whitehall, over across from the Horse Guards, likewise placed them in a pocket of traffic; a practically impregnable press of vehicles closed in behind them ere Calendar's conveyance could follow out of the side street.

That the same conditions, but slightly modified, hemmed them in ahead, went for nothing in Kirkwood's estimation.

"Good driver!" he approved heartily. "He's got a head on his shoulders!"

The girl found her voice. "How," she demanded in a breath, face blank with consternation, "how did you dare?"

"Dare?" he echoed exultantly; and in his veins excitement was running like liquid fire. "What wouldn't I dare for you, Dorothy?"

"What have you not?" she amended softly, adding with a shade of timidity: "Philip..."

The long lashes swept up from her cheeks, like clouds revealing stars, unmasking eyes radiant and brave to meet his own; then they fell, even as her lips drooped with disappointment. And she sighed.... For he was not looking. Man-like, hot with the ardor of the chase, he was deaf and blind to all else.

She saw that he had not even heard. Twice within the day she had forgotten herself, had overstepped the rigid bounds of her breeding in using his Christian name. And twice he had been oblivious to that token of their maturing understanding. So she sighed, and sighing, smiled again; resting an elbow on the window-sill and flattening one small gloved hand against the frame for a brace against the jouncing of the hansom. It swept on with unabated speed, up-stream beside the tawny reaches of the river; and for a time there was no speech between them, the while the girl lost consciousness of self and her most imminent peril, surrendering her being to the lingering sweetness of her long, dear thoughts....