dressed in work clothes.
âWho gave you the tip?â Frank asked.
âI canât tell you that. The information was given to me in confidence.â
Frank was tempted to ask Bowden why he wanted a fieldpiece for a ship. But recalling his fatherâs admonition to play along with the suspect, he merely said:
âSorry we knocked you down, Mr. Bowden. Let us know if you want us to help dig here.â
Joe followed Frankâs cue to be pleasant. âWe went to the motel to see you this morning,â he said. âFrank and I thought weâd talk to you a little more about the cannon you want us to find.â
Frank broke in. âWe saw the warning note on your door.â He watched Bowden closely.
âWarning note?â the man repeated, showing real surprise. After Frank explained, Bowden suddenly laughed. âI guess those kids at the motel were pulling a joke on me. They were playing cops-and-robbers when I left.â He glanced at his wrist watch. âI must get back.â
He strode off in the direction of the road. Joe turned to Frank. âDo you believe that cops-and-robbers story?â
âNo. I didnât see any children around that motel. You know, one of us ought to follow Bowden and send the police up here.â
âGood idea,â Joe said. âYou go; Iâll stay.â
While he concealed himself to stake out the cabin, Frank cautiously tailed the suspect. âIâll bet we interrupted some kind of meeting,â he said to himself.
Bowden walked toward a green Pontiac hardtop parked on the road and roared off. Frank followed in the convertible, memorizing the Pontiacâs license number. He was disappointed when the man drove directly to his motel, took the note off his door, and went into his cabin. When he had not come out fifteen minutes later, Frank decided to call Chief Collig and drove to a gas station.
The police chief agreed to send two men to the woods and Frank returned to the spot where he had left his brother.
âAnything doing?â he asked when he arrived at Joeâs hideout.
Joe shook his head and Frank told him about Bowden and Chief Collig. Ten minutes later the boys were relieved by two plainclothesmen.
The Hardys hurried through the woods and drove on to Delmore. It was nearly noon when they arrived at the motorcycle shop.
âGood morning,â said the short, smiling proprietor, who introduced himself as Mr. Braun.
âWeâre interested in Kesselrings,â Frank replied. âDo you sell them?â
âYes, I have the agency. But I havenât sold any motorcycles in a long time. Oneâs been standing in my basement for weeks.â
Frank and Joe looked at each other. Was their clue going to lead nowhere?
Joe said, âWeâd like to see it.â
The three descended a flight of wooden stairs. The man walked around a high pile of cartons, then suddenly exclaimed:
âMy Kesselring! Itâs gone! Stolen!â
Mr. Braun excitedly went on to say that he had been away on vacation for two weeks and had just returned. The Kesselring had been there when he left.
âAch, what will I do?â he wailed.
Frank laid a hand on his shoulder.
âYou may get it back this very day,â he said. He told of finding the motorcycle at the cabin and of the policemen now at the spot waiting to capture the thief. The dealer was overjoyed.
Frank at once telephoned this latest development to Chief Collig, while Mr. Braun thanked the boys repeatedly. Then they said good-by and left. After a quick lunch at a nearby diner they returned to their convertible.
âJoe, I have a hunch,â said Frank. âThat motorcycle thief might be a recently released in. mate of the penitentiary. Mr. Braunâs shop here in Delmore would be a likely place for him to rob. Letâs call on Warden Duckworth and ask him some questions.â
âGood idea.â
The warden was an old friend of Mr.