“Really, madam, you may,” replied Oldroyd. “When you first called me in, you know what I prescribed, and how much better he grew. I prescribe the same again. If we set Nature and her simple laws at defiance, she will punish us.”

“But he grows worse,” sighed Mrs Alleyne. “He devotes himself more and more to his studies, and it is hard work to get him out of the observatory. He says he has some discovery on the way, and to make that he is turning himself into an old man. Will you go and see him now?”

Oldroyd bowed his acquiescence, and rose to go.

“You had better go alone,” said Mrs Alleyne, “as if you had called in as a friend. He is very sensitive and strange at times, and I should not like him to think that I had sent for you.”

“It would be as well not,” said Oldroyd; and, taking the familiar way, he was crossing the hall, when he came suddenly upon Lucy, who stopped short, turned very red, turned hastily, and hurried through the next door, which closed after her with quite a bang.

Oldroyd’s brow filled with lines, and he drew a long breath as he went on to the door of the observatory, knocked, and, receiving no answer, turned the handle gently and stepped in, closing the door behind him.

He stood for a few minutes in what seemed to be intense darkness; but as his eyes grew more accustomed to the great place, he could see that through the closed shutters a white stream of light came here and there, and on one side there was a very small, closely-shaded lamp, which threw a ring of softened yellow light down upon a sheet of paper covered with figures. Saving these faint traces of light all was gloom and obscurity, through which loomed out in a weirdly, grotesque fashion the great tubes and pedestals and wheels of the various instruments that stood in the place. On one side, too, a bright ray of light shone from a spot near the floor, and, after a moment or two, Oldroyd recalled that there stood the large trough of mercury, glittering like a mirror, and now reflecting a ray of light as if it were a star.

The silence was perfect, not a breath could be heard, and it was some few minutes before Oldroyd made out that his friend was seated on the other side of the table that bore the shaded lamp, his head resting upon his hand, perfectly motionless, but whether asleep or thinking it was impossible to say.

Oldroyd had not seen the astronomer for some weeks. There had been no falling off from the friendly feeling existing between them, but Alleyne had completely secluded himself since the encounter with Rolph in the fir wood, and, for reasons of his own, Oldroyd had refrained from calling, the principal cause being, as he told himself, a desire not to encounter Lucy.

He stood waiting for a short time watching the dimly-seen figure, and half-expecting that it would move and speak; but the minutes sped on, and the dead silence continued till Oldroyd, as he gave another look round the gloomy place, black as night in the early part of the afternoon of a sunny day, could not help saying to himself—“How can a man expect health when he shuts himself up in such a tomb?”