It's the most bafflin' case I ever worked on." "Has it occurred to you that the real leader was in this neighbourhood at the time?
In Boggs City, let us say.

According to Rosa--Miss Gray's story, the man Sam went out nightly for instructions.

Well, he either went to Boggs City or to a meeting place agreed upon between him and his superior.

It is possible that he saw this person on the very night of my own adventure.

Now, the thing for us to do is to find out if a stranger was seen in these parts on that night.