Rachel adjusted the covering; then she ran after Annie, who had gained the outer door. She caught her by the shoulders and twitched her about. "But why didn't you do it yourself?" she cried. "What do you mean by not doing it, you—you little coward? Your husband's a genius; but that's all you care!"

Annie with difficulty rid herself of the other's grasp and backed off. "I don't care if he's a genius a thousand times over," she cried hysterically, "I guess he isn't the only one to be thought of! Oh, he had no right to leave me this way with the janitress and everyone gone!" Sobs rose in her throat.

Turning to the door, she ran out upon the landing; but Rachel's voice, keyed to a pitch of indignation, pursued her.

"You would leave this place all alone, would you? You are not even going to close the windows but leave everything open?"

Annie made a helpless gesture as she descended the stairs. "It won't be alone; Ding Dong will be along in a few minutes and he'll attend to everything."

Rachel remained staring after her for a moment; then, her eyes blazing with disdain, she closed the door. Pride kept her from bolting it. Returning to the workroom she sat down beside the bench and occasionally she glanced up at the telescope. Though she told herself that Annie had imagined the whole situation, she was relieved to find that the watcher had forsaken his post. As for the quarrel, it must have been of a more serious nature than usual. However, Annie would not remain away for any length of time.

This was the noon hour and owing to a slight diminution in the roar of the city the ticking of a clock could be heard through the room. For a time Rachel's face wore the scornful look it had worn in Annie's presence, but gradually this expression gave place to undisguised enthusiasm. Taking the tools one by one into her hands, she examined them, wondering about their use. A radiometer on which Emil was engaged in making improvements, stood at her elbow; drawing this to her with both hands, she began patting it after the fashion of a mother caressing the head of a child. Finally she rested her hot cheek against the polished surface and closed her eyes. Lulu, who had been observing her intently from the loftiest pipe of the organ, crept to a position at her shoulder. There, crouched amid a clutter of tools and instruments, she continued to cherish the maple leaf. Had an observer been present, the two might have suggested to his mind a group by Albrecht Dürer; for the sentimental look in the face of the little animal was a droll reflection of the devotion in the face of the woman. Presently a tear stole down Rachel's cheek. She had just lifted her hand to brush it away when she heard a step in the passage. Thinking Ding Dong had come, she turned to the door; but a large light-haired man with a pock-marked face stood before her.

Both started. The stranger instantly recovered himself.

"Good afternoon, madam," he said, removing his hat with a flourish; "can you tell me if Mr. St. Ives is in?"

Rachel stood up; one of her hands rested on the piano sounding-board. "No, he is not."