“It’s Nelson Martell!” exclaimed Jack, in amazement. “Nappy’s father! What do you know about that?”
“You’re right!” answered his cousin. “And that being so, more than likely one of the other men in the car was Slogwell Brown, for they always travel together, just like their sons.”
“This picture was taken after the hold-up at the offices. I wonder if there can be any connection between these two happenings.”
“I don’t know. But I should say that it would be a good thing to have the Martells and the Browns watched.”
When the others got home they examined the photographs with interest. Then the twins told the other boys of following Ken Greene and of how they had discovered he was a relative of their fathers’ former enemy, Tad Sobber.
“It certainly begins to look as if some of our old enemies were mixed up in this affair,” was Tom Rover’s comment. “The question is, how are we going at it to prove it?”
“The only thing I can think of to do is to place the detectives and the police in possession of all the facts,” answered Dick Rover.
“All sorts of things are piling in just now,” came from Fred’s father, after a slight pause. “I got a telegram from Captain Oran Corning that he would be at the house to see me either this evening or the first thing in the morning.”
“Oh, Dad, is he coming about that hunt for the Margarita?” cried Fred.
“Yes, but I’m afraid that I’ll have to disappoint the old captain. I’ll have to give my entire attention to this hold-up business now,” answered Sam Rover.