âChetâs a pretty good pupil, but quite a load! We were just working on a movement against the back.â
âWe know a couple of judo holds,â Frank said, âbut that last one you used on Chet was a beauty!â
âItâs easy enough, if youâre fast,â Russ replied. âHere, Iâll show you how it goes.â
Frank stepped forward and the man showed him the fundamentals of the hold, taking each step slowly.
âNow try it on me,â he said.
Hardly were the words out of his mouth when the husky Russ went zooming through the air like a rocket.
âHey!â he shouted to Frank. âIâm the instructor, remember?â
They laughed, and the judo expert showed them a variety of other holds. Then he said good-by.
After Russ had left, the boys gathered on the spacious porch. Frank and Joe quickly told Chet about their baffling case and of the attack on their father.
âShot by an arrow!â Chet exclaimed, and added, âGosh, Iâm sure sorry, fellows.â
âWeâll have to postpone our camping trip,â Joe announced.
âOh, sure, I understand.â
Presently the telephone rang, and Mrs. Morton called, âItâs for you, Frank.â
He went inside, spoke a few words, and came back to the porch.
âIt was Slow Mo,â he said to Joe. âHeâs dug up some new info and wants to see us.â
âHowâd he know you were here?â Chet asked.
âAunt Gertrude told him,â Frank explained. âWeâd better go.â
Frank and Joe drove off to Pleasantville. As they stopped in front of the garage, Slow Mo ambled out to meet them.
âMore funny business goinâ on around here,â he announced.
âWhat happened?â
âSome smart aleck tried to take that car last night,â he replied. âBut I fooled him.â
âHow?â Joe asked.
Slow Mo scratched his whiskers and grinned. âWell, he got in a window, but when he tried to open the garage doors my burglar alarm went off and scared him away!â
âGood for you!â Frank said. âI didnât know you had an alarm.â
âOh, I didnât till a few days ago,â Slow Mo replied. He looked a little sheepish. âNever thought of it until all this trouble started over the black sedan.â
The boys exchanged grins, then the three went into the garage and looked around. The mystery car was halfway across the floor. The intruder evidently had moved it before trying to open the garage doors.
âDid you find any clues?â Frank queried.
âNothinâ,â Slow Mo said, ââcept the fellow must be a chicken farmer.â
âWhat makes you think that?â Joe asked.
âHe left a feather on the seat of the car,â Slow Mo replied. He reached an oily hand into his pocket and drew out a smudged white feather.
âBoy!â Joe exclaimed. âWhat a clue!â
âA clue?â Slow Mo looked puzzled. âNever thought of that.â
Frank and Joe thanked Slow Mo for the information and headed back to Bayport.
âI think we have something here,â Frank remarked. âThis feather sure looks like the ones on the arrow that wounded Dad.â
After parking in front of police headquarters, the boys hurried inside. The chief was not there, but the sergeant in charge let them examine the arrow again. Frank compared the feathers.
âLook, Joe!â he said excitedly. âThey match!â
âThen the guy who dropped this at Slow Moâs may be the one who shot Dad!â Joe exclaimed. âWeâve got to find him!â
At the mention of Mr. Hardy, the sergeant pricked up his ears. âToo bad about that latest news,â he declared. âI know how you must feel.â
âToo bad about what?â Frank asked quickly.
âHavenât you heard?â the officer asked in surprise. âThe arrow that shot your father