The detective’s search was not quite in vain, although he could not tell yet whether what he had found would be of any value. Leopold Winkler had had very little correspondence, or else he had had no reason to keep the letters he received. Muller found only about a half dozen letters in all. Three of them were from women of the half-world, giving dates for meetings. Another was written by a man and signed “Theo.” This “Theo” appeared to be the same sort of a cheap rounder that Winkler was. And he seemed to have sunk one grade deeper than the dead man, in spite of the latter’s bad reputation. For this other addressed Winkler as his “Dear Friend” and pleaded with him for “greater discretion,” alluding evidently to something which made this discretion necessary.
“I wonder what rascality it was that made these two friends?” murmured Muller, putting Theo’s letter with the three he had already read. But before he slipped it in his pocket he glanced at the postmark. The letters of the three women had all been posted from different quarters of the city some months ago. Theo’s letter was postmarked “Marburg,” and dated on the 1st of September of the present year.
Then Muller looked at the postmark of the two remaining letters which he had not yet read, and whistled softly to himself. Both these letters were posted from a certain station in Hietzing, the station which was nearest his own lodgings and also nearest the Thorne house. He looked at the postmark more sharply. They both bore the dates of the present year, one of them being stamped “March 17th,” the other “September 24th.” This last letter interested the detective most.
Muller was not of a nervous disposition, but his hand trembled slightly as he took the letter from its envelope. It was clear that this letter had been torn open hastily, for the edges of the opening were jagged and uneven.
When the detective had read the letter--it contained but a few lines and bore neither address nor signature--he glanced over it once more as if to memorise the words. They were as follows: “Do not come again. In a day or two I will be able to do what I have to do. I will send you later news to your office. Impatience will not help you.”--These words were written hastily on a piece of paper that looked as if it had been torn from a pad. In spite of the haste the writer had been at some pains to disguise the handwriting. But it was a clumsy disguise, done by one not accustomed to such tricks, and it was evidently done by a woman. All she had known how to do to disguise her writing had been to twist and turn the paper while writing, so that every letter had a different position. The letters were also made unusually long. This peculiarity of the writing was seen on both letters and both envelopes. The earlier letter was still shorter and seemed to have been written with the same haste, and with the same disgust, or perhaps even hatred, for the man to whom it was written.