But, though he strained his eyes to catch some indications of the shadowy figure he had seen only a moment or two before, he could not do so; it had vanished. This did not add anything to the big athlete's quietude of mind; for the footsteps of Nora, dulled by springy sod, were now close at hand.

The girl reached the arbor and took up the position which Bat had lately occupied; and he knew that she had settled herself for a vigil—to watch all that passed in the sitting-room of the Burton house. Naturally, the eyes of the big man also went in that direction once more.

The nurse had returned to the room and was bending over the invalid, a glass in her hand. The girl lay motionless, her face turned upward and her thin hands pathetically folded. The nurse, after she had succeeded in inducing the patient to take a few drops of what she held to her lips, busied herself with some things upon a small table near the chair; then she left the room.

There was a pause; no movement came from the room whatsoever. Bat fancied that the sick girl had gone to sleep; but this thought had no sooner taken shape in his mind than he saw her stir. Then she arose slowly in the chair, and sat, apparently listening, her manner surprisingly alert. Only a few moments ago she had shown every sign of exhaustion; now her strength was unquestioned, for her body was firmly held and her grip upon the arms of the chair was sure.

There came a little gasp from Nora crouching behind the rose arbor.

"Surprised!" thought Bat. "And no wonder! I'm just a little bit that way myself."

Mary Burton threw back the blanket in which she was swathed, and stood up. She wore a long dressing gown, tied about the waist; from a pocket of this she took something, and then after a moment of listening approached an old mahogany high-boy, unlocked and opened a drawer and looked into it. Almost at once it was slid back into place and relocked; the girl stood poised for an instant, as though not sure as to what her next movement would be; then she went tiptoeing to the door, opened it, and disappeared.

Nora drew a long breath; and Scanlon, as he stood, amazed, felt like echoing it. But the next instant all that which had happened in the sitting-room, surprising as it had been, was wiped from his mind. From outside there came a low-pitched voice, that of old Bohlmier:

"Do not make some noise!" it said. A gasp came from Nora, a gasp which would have been a scream if fear had not suppressed it. "I will talk a little with you, if you blease."

There was an instant's silence; Bat pressed hard against the trellis work of the arbor—only a few inches separated him from the girl outside, and he could hear her breath catching sharply in her throat as she spoke.