"Have you done as much with the poor fellow at Sir Clement's residence?" he asked.
"No, but I shall do so in the morning. This is a curious sort of stuff, Townsend, and certainly not made in England. It is not rope or cord in our commercial sense of the word, but a strong Manilla twist of native fibre. Thus we are going to introduce a foreign element into the solution."
Townsend smiled as he produced a little packet from his pocket and laid it on the table.
"You are building up my theory for me, wonderfully, sir," he said. "I also have something of the same sort here, only I have more than you seem to have collected. Here is the same sort of fibre from Mr. Manfred's collar-stud, so that he must have been strangled over his collar, which means a powerful pressure. I didn't think it possible for human hands to put a pressure like that, but there it is."
"My word, we've got a powerful assassin to look for!" Sir James exclaimed. "Like you, I should not have deemed it possible. Did you find all that on Manfred's collar-stud?"
"Not all of it, sir. The collar-stud was bent up as if it had been a bit of tinfoil. But I found the bulk of this under the dead man's finger-nails. They are long nails, and doubtless in the agony of strangulation they clutched frantically at the cord. I am quite sure that you will find this fibre to be identical with that which you took from the neck of the Streatham victim."
"And this caretaker you speak of. Is he a respectable man? Silverthorne you said his name was, I fancy."
"That's the man, sir. He has been in his present employ for one-and-twenty years, a hard-working, saving man, with a big family. Oh, I should take his word for most things that he told me!"
Sir James revolved the problem slowly in his mind, as he inhaled his cigarette smoke. If the Lennox nursery had been deliberately made the centre of a puzzling murder mystery, it was quite sure that neither the nursery proprietor nor his man knew anything whatever about it. And yet it had been necessary, for some reason, that a glass-house should play an important part, for both murders had taken place under glass, and both suggested that the orchid was at the bottom of it. Again, Townsend was not the kind of man to make reckless statements, and when he boldly averred that Sir Clement Frobisher could tell all about it if he liked, he had assuredly some very strong evidence to go upon. A great deal depended upon the analysis of the red, liquid stain on the fibre taken by Townsend from the body of Manfred.
"If these little bits of stuff could speak what tales they could tell," Sir James said, as he carefully locked up both packets of fibre. I'll get up an hour earlier in the morning and have a dig at these, Townsend. And meanwhile as my days are busy ones, and it's past one o clock, I shall have to get you to finish your drink and give me your room instead of your company.