The twenty thousand pounds must have come from some one.

Why did they keep silence?
What was the mystery about it?
Could it be that they were not in a position to disclose the fact?
Curiously enough, this unnatural absence of news inspired him with something which was almost fear.

He had taken his risks boldly enough.

Now that Fate was playing him this unexpectedly good turn, he was conscious of a growing nervousness.

Who could he have been, this man?
Whence could he have derived this great sum?
One person at least must know that he had been robbed--the man who murdered him must know it.