"And Saunderson," replied Dr. Cairn with a grim smile, "is a Scotchman! Rely upon his diplomacy, Rob. Myra will be safe enough."

"God grant that she is!"

At that, silence fell between them, until punctually to time, the train slowed into Charing Cross. Inspired by a common anxiety, Dr. Cairn and his son were first among the passengers to pass the barrier. The car was waiting for them; and within five minutes of the arrival of the train they were whirling through London's traffic to the house of James Saunderson.

It lay in that quaint backwater, remote from motor-bus high-ways—Dulwich Common, and was a rambling red-tiled building which at some time had been a farmhouse. As the big car pulled up at the gate, Saunderson, a large-boned Scotchman, tawny-eyed, and with his grey hair worn long and untidily, came out to meet them. Myra Duquesne stood beside him. A quick blush coloured her face momentarily; then left it pale again.

Indeed, her pallor was alarming. As Robert Cairn, leaping from the car, seized both her hands and looked into her eyes, it seemed to him that the girl had almost an ethereal appearance. Something clutched at his heart, iced his blood; for Myra Duquesne seemed a creature scarcely belonging to the world of humanity—seemed already half a spirit. The light in her sweet eyes was good to see; but her fragility, and a certain transparency of complexion, horrified him.

Yet, he knew that he must hide these fears from her; and turning to Mr. Saunderson, he shook him warmly by the hand, and the party of four passed by the low porch into the house.

In the hall-way Miss Saunderson, a typical Scottish housekeeper, stood beaming welcome; but in the very instant of greeting her, Robert Cairn stopped suddenly as if transfixed.

Dr. Cairn also pulled up just within the door, his nostrils quivering and his clear grey eyes turning right and left—searching the shadows.

Miss Saunderson detected this sudden restraint.

"Is anything the matter?" she asked anxiously.