corridor. “You will hear from me again,” he said.
“Thank you for the warning,” was Tim’s rejoinder.
After he had seen his unwelcome visitor off the premises, Tim went in search of Stamford, who, with his two assistants, was working in a little study getting out particulars of the old man’s investments. The lawyer listened in silence while Tim narrated what had passed.
“He is a very dangerous man,” said Mr. Stamford at last; “and, so far from being rich, I happen to know that he is on the verge of ruin. There are some queer stories about Hildreth. I have had a hint that he was once in an Australian prison, but, of course, there is no evidence to connect him with this terrible crime. What are your immediate plans?”
“The voice amplifier has been reconstituted,” said Tim. “The experts are making a test to-day, though I very much doubt whether they will succeed in establishing communication.”
A smile fluttered at the corner of the lawyer’s mouth.
“Do you still believe that Mr. Colson was in communication with another planet?”
“I’m certain,” said Tim emphatically.
He went back to the blue drawingroom, and had hardly entered before Sir Charles came in.
“It is as I thought,” said the scientist; “neither Zeta nor Theta! It is, in fact, a distinct body of some kind, and, in my judgment, well outside the orbit of the hypothetical Vulcan. If you look at the back of the photograph—”
He turned it over, and Tim saw that, written in pencil in the microscopic calligraphy of the Professor, were a dozen lines of writing.
“I knew, of course, that this was a dead world, without atmosphere or even water. There can be no life there. I made an enlargement by my new process, and this revealed a series of flat, rocky valleys.”
“What the deuce his new process was, heaven only knows!” said Sir Charles in despair. “Poor Colson must have been the most versatile genius the world has known. At any rate, that disposes of the suggestion that this planetary body is that whence come the signals — if they come at all.”
Sir Charles waited until the experts had finished the work of reassembling two of the more complicated machines; but, though experimenting until midnight, they could not establish communication, and at last, with a sense of despair, Tim ordered the work to cease for the night.
The whole thing was becoming a nightmare to him: he could not sleep at nights. Chap and his sister came over in the morning to assist him in a search, which had gone on ever since the death of Professor Colson.
“We can do no more,” said Tim helplessly, “until we have seen the Professor’s manuscript. Until then we do not know for what we are searching.”
“What about that stone in the garden? Won’t that tell you anything?” asked Chap. “I’d like to see it.”
They went out into the courtyard together and stood before the stone in silence.
E 6 O 1
T 2 D 4
H 4 L 1
A 1 N 3
W 1 U 1
R 2 B 1
I 3 S 2
“Of course, that isn’t as difficult as it appears,” said Chap, to whom cryptograms were a passion. “There is a sentence written there, containing so many ‘e’s’, so many ‘h’s’, etcetera, and perhaps, when we find the sentence, the mystery will be half solved.”
He jotted the inscription down in a notebook, and throughout the day was puzzling over a solution. Night came, and the two were on the point of departure, when Chap said suddenly: “Do you think you were wise, Timothy, to tell the reporter Johnny all you did?”
(Tim had given an interview to a local newspaper, which had described more fully than he had intended — more fully, indeed, than his evidence at the inquest — what had happened immediately preceding Colson’s death.)
“Because, y’ know, it struck me,” said Chap, “that the poor old Professor’s manuscript would be very valuable to a certain person. Does it occur to you that our friend might also be searching for this narrative?”
This was a new idea to Tim.
“Why, yes,” he said slowly; “I never thought of that. No; that didn’t strike me. But I don’t know where he would find it. We’ve taken out every likely stone in the building; I’ve had the cellars searched—”
“What makes you think it’s behind a stone?” asked Chap.
“His reference to a mason. My guess — and I may not be far wide of the mark — is that Mr. Colson, having written his manuscript, hid it in one of the walls. But so far I have not been able to discover the hiding-place.”
He walked to the end of the drive to see his friends off, and then returned to the study. He was alone in the house now, save for the servants. Sir Charles had gone back to town by the last train, and Stamford had accompanied him.
The butler came in to ask if he wanted anything before he went to bed, and Tim shook his head.
He had taken up his quarters in a spare room immediately above the library, and for an hour after his visitors had departed he sat on the broad window-seat, looking down into the courtyard, now bathed in the faint radiance of the crescent moon. The light shone whitely upon the cryptogram stone, and absentmindedly he fixed his eyes upon this, the least of the old man’s mysteries. And then — was his eye playing tricks with him? He could have sworn he saw a dark figure melt out of the darkness and move along the shadow of the box hedge.
He pushed open the casement window, but could see nothing.
“I’m getting jumpy,” he said to himself, and rising with a yawn, took off his coat preparatory to undressing. As he did so, he glanced out of the window again and started. Now he was sure: he could see the shapeless black shadow, and it was moving towards the cryptogram stone.
His pulse beat a little quicker as he watched. There was no doubt about it now. In the moonlight the figure in the long black coat and the broad sombrero which shaded his face, stood clearly revealed. It was touching the stone, and even as Tim looked the little obelisk fell with a crash.
In a second Tim was out of the room and speeding along the corridor. As he came into view of the figure, it stooped and picked something from the ground.
The manuscript! What a fool he had been! That was where the old man had concealed the story of his discovery! But there was no time for regret: the mysterious visitant had already disappeared into the shadows. Was he making for the river? Tim was uncertain. He was halfway down the slope before he realised that he had made a mistake. Behind him he heard the soft purr of a motorcar, and, racing up the slope, he came into view of a red tail-light as it disappeared down the broad drive towards the road. The great iron gates were closed, and that would give him a momentary advantage, though he knew he could not reach the car before they were open.
Then
