He took it over to the window, and spread it out upon the table. It was dirty, and half burnt, but still it was a clue. The above is a FAC-SIMILE of the letter:—
"There is not much to be gained from that, I'm afraid," said Madge, sadly. "It shows that he had an appointment—but where?"
Calton did not answer, but, leaning his head on his hands, stared hard at the paper. At last he jumped up with a cry—
"I have it," he said, in an excited tone. "Look at that paper; see how creamy and white it is, and above all, look at the printing in the corner—'OT VILLA, TOORAK.'"
"Then he went down to Toorak?"
"In an hour, and back again—hardly!"
"Then it was not written from Toorak?"
"No, it was written in one of the Melbourne back slums."
"How do you know?"