To see the young officer returning with her sister this way was more of a mystery than she could fathom. But, at Bob's sibilant command for silence, she trustingly obeyed, and went up before him to guide the way along the darkened stairway.

At last they reached the door of their apartment.

Mary opened it, and Bob entered, walking softly. She led the way to her humble little bedroom, the one which she and Lorna shared. Bob laid the sister upon the bed, and beckoned Mary to follow him. Lorna was moving now, her hands tremulous, and she was half-moaning.

"I want my Mary. I want my Mary."

Her sister followed Burke out into the hall, which led down the steps to the street.

"Now, remember, don't tell her about being drugged. A man at one of the tables put some knockout drops into a glass of water"—Bob was softening the blow with a little honest lying—"and I rescued her just in time. She knows nothing about it—only warn her about the company that she was in. I have learned that they are worse than worthless. I will attend to them in my own way, and in the line of my work, Miss Mary. But, as you love your sister, don't ever let her go with those men again."

Mary's hand was outstretched toward the young man's, and he took it gently.

"You've done much for Lorna," she breathed softly, "and more for me!"

There was a sweet pressure from those soft, clasping fingers which thrilled Bob as though somehow he was burying his face in a bunch of roses—like that first one which had tapped its soft message for admission to his heart, back in the hospital.

"Good night. Don't worry. It's all ended well, after all."