"Let us trade hats for a while, Mickety. I can pull that down over my face."
The exchange was quickly effected. With the soft hat bent down Ralph knew he would stand a much greater chance of escaping detection at the hands of Martin than before.
On went the man and his followers for fully a dozen blocks. Then Martin turned into a very respectable side street, and, ascending the stone steps of a large brick mansion, rang the bell.
A man came to the door and let him in. Then the door was tightly closed once more.
"Dat's de end of dis case," muttered Mickety, in a disappointed tone.
"Not a bit of it, Mickety," returned Ralph. "See if you can hunt up a policeman. In the meantime I will watch the house so that this man does not get away."