Gurdon paused, a little uncertain as to what to do next. He would have liked, if possible, to be a little closer to Vera, for if there were any dangers threatening her he would be just as powerless to help now as if he had been in another part of the town. He walked slowly down the side of the house, and noted that there was a line garden behind, and a small green door leading to the lane. Acting on the impulse of the moment he tried the door, which yielded to his touch. If he had been asked why he did this thing he would have found it exceedingly difficult to reply. Still, the thing was done, and Gurdon walked forward over the wide expanse of lawn till he could make out at length a row of windows, looking out from the back of the house. It was not so very easy to discern all this, for the night was dark, and the back of the house darker still. Presently a light flared out in one of the rooms, and then Gurdon could make out the dome of a large conservatory leading from the garden to the house.

"I shall find myself in the hands of the police, if I don't take care," Gurdon said to himself. "What an ass I am to embark on an adventure like this. It isn't as if I had the slightest chance of being of any use to the girl, seeing that I—"

He broke off, suddenly conscious of the fact that another of the rooms was lighted now—a large one, by the side of the conservatory. In the silence of the garden it seemed to him that he could hear voices raised angrily, and then a cry, as if of pain, from somebody inside.

Fairly interested at last, Gurdon advanced till he was close to the window. He could hear no more now, for the same tense silence had fallen over the place once more. Gurdon pressed close to the window; he felt something yield beneath his feet, and the next moment he had plunged headlong into the darkness of something that suggested an underground cellar. Perhaps he had been standing unconsciously on a grating that was none too safe, for now he felt himself bruised and half stunned, lying on his back on a cold, hard floor, amid a mass of broken glass and rusty ironwork.

Startled and surprised as he was, the noise of the breaking glass sounded in Gurdon's ears like the din of some earthquake. He struggled to his feet, hoping that the gods would be kind to him, and that he could get away before his presence there was discovered. He was still dazed and confused; his head ached painfully, and he groped in the pitch darkness without any prospect of escape. He could nowhere find an avenue. So far as he could judge, he was absolutely caught like a rat in a trap.

He half smiled to himself; he was still too dazed to grasp the significance of his position, when a light suddenly appeared overhead, at the top of a flight of stairs, and a hoarse voice demanded to know who was there. In the same dreamy kind of way, Gurdon was just conscious of the fact that a strong pair of arms lifted him from the floor, and that he was being carried up the steps. In the same dreamy fashion, he was cognisant of light and warmth, a luxurious atmosphere, and rows upon rows of beautiful flowers everywhere. He would, no doubt, awake presently, and find that the whole thing was a dream. Meanwhile, there was nothing visionary about the glass of brandy which somebody had put to his lips, or about the hands which were brushing him down and removing all traces of his recent adventure.

"When you feel quite up to it, sir," a quiet, respectful voice said, "my master would like to see you. He is naturally curious enough to know what you were doing in the garden."

"I am afraid your master must have his own way," Gurdon said grimly. "I am feeling pretty well now, thanks to the brandy. If you will take me to your master, I will try to explain matters."

The servant led the way into a large, handsome apartment, where a man in evening dress was seated in a big armchair before the fire. He looked round with a peculiar smile as Gurdon came in.

"Well, sir," he said. "And what does this mean?"