“Perhaps not just now,” admitted the Mystery; “but, if you want to know——”
“I do! I shall not rest till I find out!”
“Then I will help you to find out.”
“I am sure this man Brattle has had a hand in the disappearance of my friend. If not, how does it happen that he knows Browning is not with me? Brattle must be followed—he must be tracked to his hole!”
“Let me do it.”
“You cannot do everything. I must have a disguise. I must go in there! I am determined to go in there!”
“Come with me.”
“Where?”
“I will see that you have what you want.”
They sprang into a cab, the man of mystery spoke to the driver, and away they went. It was not a long drive. The cab dropped them at the door of a dark, little shop. The Mystery knocked with his knuckles against a pane in a window, and soon the door opened. They entered. A coal-oil lamp lighted the place.