I left Maisie and Tom Dunlop keeping my mother company and made haste to Mr. Lindsey's house, and after a little trouble roused him out of his bed and got him down to me. It was nearly daylight by that time, and the grey morning was breaking over the sea and the river as he and I walked back through the empty streets—I telling him of all the events of the night, and he listening with an occasional word of surprise. He was not a native of our parts, but a Yorkshireman that had bought a practice in the town some years before, and had gained a great character for shrewdness and ability, and I knew that he was the very man to turn to in an affair of this sort.

"There's a lot more in this than's on the surface, Hugh, my lad," he remarked when I had made an end of my tale. "And it'll be a nice job to find out all the meaning of it, and if the man that's been murdered was the man Gilverthwaite sent you to meet, or if he's some other that got there before you, and was got rid of for some extraordinary reason that we know nothing about. But one thing's certain: we've got to get some light on your late lodger. That's step number one—and a most important one."

The superintendent of police, Mr. Murray, a big, bustling man, was outside our house with Chisholm when we got there, and after a word or two between us, we went in, and were presently upstairs in Gilverthwaite's room. He lay there in his bed, the sheet drawn about him and a napkin over his face; and though the police took a look at him, I kept away, being too much upset by the doings of the night to stand any more just then. What I was anxious about was to get some inkling of what all this meant, and I waited impatiently to see what Mr. Lindsey would do. He was looking about the room, and when the others turned away from the dead man he pointed to Gilverthwaite's clothes, that were laid tidily folded on a chair.

"The first thing to do is to search for his papers and his keys," he said. "Go carefully through his pockets, sergeant, and let's see what there is."

But there was as little in the way of papers there, as there had been in the case of the murdered man. There were no letters. There was a map of the district, and under the names of several of the villages and places on either side of the Tweed, between Berwick and Kelso, heavy marks in blue pencil had been made. I, who knew something of Gilverthwaite's habits, took it that these were the places he had visited during his seven weeks' stay with us. And folded in the map were scraps of newspaper cuttings, every one of them about some antiquity or other in the neighbourhood, as if such things had an interest for him. And in another pocket was a guide-book, much thumbed, and between two of the leaves, slipped as if to mark a place, was a registered envelope.

"That'll be what he got yesterday afternoon!" I exclaimed. "I'm certain it was whatever there was in it that made him send me out last night, and maybe the letter in it'll tell us something."

However, there was no letter in the envelope—there was nothing. But on the envelope itself was a postmark, at which Chisholm instantly pointed.

"Peebles!" said he. "Yon man that you found murdered—his half-ticket's for Peebles. There's something of a clue, anyway."

They went on searching the clothing, only to find money—plenty of it, notes in an old pocket-book, and gold in a wash-leather bag—and the man's watch and chain, and his pocket-knife and the like, and a bunch of keys. And with the keys in his hand Mr. Lindsey turned to the chest.

"If we're going to find anything that'll throw any light on the question of this man's identity, it'll be in this box," he said. "I'll take the responsibility of opening it, in Mrs. Moneylaws' interest, anyway. Lift it on to that table, and let's see if one of these keys'll fit the lock."