Part 25

Ned nodded thoughtfully.

"Seems to me so," he said.

"It seems likely enough," the superintendent also agreed. "And if that's the case there would seem to have been some kind of ongoings near the window."

The Procurator Fiscal still seemed unconvinced.

"Nothing to go on. No proper evidence. It leads nowhere definitely," he said.

"Well now," continued the superintendent, "the question is--how did the murderer get into the room? The door was found locked and the key had been taken away, so whether he had locked it from the inside or the outside we can't tell. There's small chance of finding the key, I doubt, for a key's a thing easy hidden away."

"So he might have come in by the door and then left by the door and locked it after him," said Ned. "Or he might have come in by the window, locked the door and gone out by the window. Or he might have come in by the window and gone out by the door, locking it after him. Those are all the chances, aren't they?"

"Indeed, that seems to be them all," said the superintendent with a note of admiration for this clear exposition that seemed to indicate he was better himself at details than deductions.

"And now what about the window? Was that open or shut or what?"

"Shut but not snibbed, sir."

Ned turned to Bisset.

"Did Sir Reginald ever forget to snib the windows, supposing one happened to be open?"

"Practically never, sir."

"Last thing before he left the room, I suppose?" said the lawyer.

The butler hesitated.

"I suppose so, sir," he admitted, "but of course I was never here to see."

"Exactly!" said Simon. "Therefore one can draw no conclusions as to whether the window had been standing all the time just as it is now, or whether it had been opened and shut again from the outside; seeing that Sir Reginald was presumably killed before his usual time for looking to the windows."

"Wait a bit!" said Ned. "I was assuming a window had been open. But were the windows fastened before Sir Reginald came in to sit here last thing?"

"Certainly they were that," said the butler emphatically.

"It was a mild night, he might have opened one himself," replied the Procurator Fiscal. "Or supposing the man had come in and left again by the door, what's more likely than that he unsnibbed the window to make people think he had come that way?"

"He would surely have left it wide open," objected Ned.

"Might have thought that too obvious," replied the lawyer, "or might have been afraid of the noise. Unsnibbing would be quite enough to suggest entry that way."

Ned turned his keen eye hard on him.

"What's your own theory then?"

"I've none," grunted Simon. "No definite evidence one way or the other. Mere guesses are no use."

Ned walked to the window and looked at it carefully. Then he threw it up and looked out into the garden.

"Of course you've looked for footsteps underneath?" he asked.

"Naturally," said Simon. "But it's a hard gravel path and grass beyond. One could fancy one saw traces, but no definite evidence."