"We'd like to talk to you," Frank said seriously.

Dumont smiled. "No doubt you are seeking jobs as busboys," he said. "I am sorry to say that we do not need any-at present, that is. But you may give me your-"

"We don't want to work here!" Chet broke in tartly. "All I want is my metal detector. It was stolen from my car!"

"Metal detector? Ah, so that's what it is. You say stolen? Ma foi! Indeed, such is not the case."

Chet's eyes bugged as Dumont rose, walked to a small closet, and pulled out the missing detector.

"That's mine, all right,' Chet said as the man handed the device over. "Where did you find it?"

"Precisely where you left it."

"It was left in the car," Frank said tersely. "Who swiped it. Do you know?"

A pained expression crossed Dumont's face. "It was not 'swiped,' as you Americans say," he retorted.

"The detector was left standing in a corner of our antique shop."

Chet scratched his head and looked perplexed. "That's funny. I don't think I carried it in there-or did I?"

Now even the Hardys were stumped. Chet was so fond of his new gadget he might conceivably have taken it inside. Frank gave their stout friend a questioning look. "Well, I can't remember taking it from the car, but I couldn't say for sure," Chet said. "Well, anyhow, thanks a lot, Mr. Dumont," he added. "Mercy buckets, as you French say."

The manager rubbed a forefinger over his black mustache. "Merci beaucoup" he corrected, smiling. "Feel free to visit us any time."

The boys went outside and hurried toward their car. "He seemed like a nice enough guy," Chet remarked. "Compared to that Marcel character, anyhow."

Frank and Joe did not reply. Both were deep in thought about the strange incident. If Dumont had had the metal detector stolen, then why would he return it so graciously?

"As Shakespeare says, there's something rotten in Denmark, Joe," said Frank as he slid behind the wheel.

"Denmark alias Palais Paris," Joe muttered.

Chet put his metal detector on the back seat, then sat in front between the Hardys. "Come on, Frank." he urged. "Let's see if we can catch up to my jalopy."

"Relax," Frank said. "I'm not going to break any speed limits."

"You can say that again," Joe replied. "We've had enough hard luck for one day."

The boys enjoyed the cool offsh.o.r.e breeze as they headed north toward Bayport along Sh.o.r.e Road.

After ten miles, Frank stopped for a red light at an intersection. The motor purred quietly. All at once Joe's keen ears detected another sound.

Something was clicking on the back seat!

Joe jerked his head around. Nothing there but the metal detector. The boy reached back to turn it off. To his astonishment, the switch was already in "off" position.

"Frank!" Joe said tersely. "Quick! Pull over!"

The light had just shown green and Frank drove across the intersection and stopped on the shoulder of the road. "What-"

"Get out! Hurry!" Joe cried, opening his door and diving onto the ground. Frank did the same and Chet followed a split second later.

Boom! A thunderous roar rent the air!

For a moment the Hardys lay half-stunned. Then Joe looked up. Smoke poured from the back of the car, which was a shambles. Frank raised his head and groaned at the sight. The brothers slowly got to their feet, but Chet remained face down in the dirt. The Hardys hastened to his side.

"Wh-what happened?" Chet asked in a weak voice, turning his head slightly.

"That detector of yours was b.o.o.by-trapped," Joe said. He bent down to pick up the twisted metal, still warm from the blast.

Carefully Frank helped Chet get up. He swayed uncertainly, unable to regain his balance. "Everything's going in circles," he said. "Boy, I'm-I'm woozy!"

The Hardys sat him down beside the road, and flagged the first car that pa.s.sed.

"Get help. We need the police and an ambulance!" Frank commanded.

"In a jiffy!" The driver sped off and the brothers placed Chet gently on a gra.s.sy spot beneath an oak tree.

"Jumpin' catfish!" Joe declared. "Our car's a wreck, Frank. What'll we do?"

"Have it towed back to Bayport for repairs. Hey, wait a minute!" Frank lifted the shattered trunk lid. In the carton lay the pieces of spinning wheel. These had not suffered any damage. Frank took out the carton. Chet was very quiet. He merely stared at the sky until a siren sounded in the distance. First to appear on the scene was a state trooper car with two officers. It was followed by an ambulance, its red light blinking rapidly.

The brothers quickly identified themselves to the policemen, who recognized the Hardy name immediately. The officers gave their names as Starr and Dunn.

"What happened here?" Trooper Starr asked.

"An explosion," Frank said, pointing to the car. "Joe and I are okay, but our friend may be hurt."

Chet was lifted to a stretcher and placed in the ambulance. "We'll take him to Bayport Hospital," the driver said.

Frank and Joe tried to cheer their pal. "You'll be fine, Chet," said Joe. "Just relax and obey the doctor's orders."

"We'll see you soon," Frank added.

Chet attempted a grin. "You sleuths will have to get along without me, I guess."

The ambulance doors were closed, and with siren wailing, it sped north along the highway.

Trooper Dunn then radioed for a wrecker to tow the damaged car to a repair shop in Bayport. "It won't be here for another hour," Dunn told the boys. "No use your waiting. We'll take you home after we hear your story."

Frank and Joe briefed the troopers about the strange disappearance of the metal detector at the Palais Paris and the officers promised to make an investigation. They took the detector as evidence. Then, at top speed, Trooper Starr drove the boys -and their spinning wheel-to their front door.

Mr. Hardy himself came out and shook hands with the officers, old friends of his. After Starr and Dunn had driven off, the detective and his sons went into the living room. Frank took the wooden pieces from the carton and put them on the floor.

"Dad, we've had a terrible time," Joe began.

"I know something about it," Mr. Hardy said. "Mr. Morton phoned me. You'll be glad to know that Chet is suffering only from shock and has been taken home."

"Thank goodness!" Frank said.

"Now come up to my study, and we'll go over this whole situation," Mr. Hardy said.

Mrs. Hardy brought gla.s.ses of lemonade, and the three sleuths discussed every angle of the Todd-Quill case, while sipping the cool beverage.

"I'm convinced the Palais Paris is involved in some way," Frank concluded.

"It would seem so," Fenton Hardy agreed. "Tell me more about this Commander Wilson."

The boys took turns relating their weird experiences at the Honeycomb Caves.

"E. K. T. Wilson's just plain loony," Joe stated flatly.

"I wouldn't agree with you one hundred percent," his father said. "If Wilson is as insane as he seems, I think he would be in an inst.i.tution."

"You mean maybe he's not crazy at all?" asked Frank. "It's an act?"

Their father thought that this was a possibility, however remote, and advised his sons to pursue the Wilson angle with all their power.

"I'll tell you why, boys. Your enemies are on the run!"

"You really think so?" Joe asked.

"Absolutely. They're desperate. The b.o.o.by-trapped detector proves it. When they find that you three escaped, the criminals will show their hand again. Mark my words. So be extra careful."

Fenton Hardy went on to say there were no new developments in the radar-station case. "Things have been quiet," he said. "Too quiet."

"Like the calm before the storm," Joe said.

Just then the Hardys' doorbell chimed. The boys heard their mother answer it and exclaim, "Gertrude Hardy! I'm so glad to see you!"

Frank and Joe exchanged wry grins. "Speaking of storms," said Frank, "Aunt Gertrude has arrived."

The detectives broke off their conference and went down to greet the visitor. Gertrude Hardy was a tall, angular woman with a strong personality. She was most emphatically not in favor of her nephews following in the footsteps of her famous brother.

"Chasing criminals is no pastime for young boys" was one of her favorite expressions. But beneath her peppery manner, Aunt Gertrude held a warm affection for Frank and Joe, and they for her.

"Hi, Aunt Gertrude!" Joe said.

"Good to see you again," said Frank.

Without any ado whatsoever, Aunt Gertrude pulled a hatpin from her hairbun, removed her flowered hat, set it on the sofa, and demanded, "Where's my spinning wheel?"

"Why-why-Aunt Gertrude-" Joe began.

"Don't stall," Miss Hardy said sternly. "Your mother just told me that you purchased a spinning wheel."

"We did," Frank said.

"Well, where is it?"

Joe feebly pointed to the spindles and other accessories lying on the floor.

"That? That's my spinning wheel?" Aunt Gertrude gasped.

CHAPTER XVII.

A Bold Warning WITH the withering directness of a district attorney, Aunt Gertrude questioned her nephews about the broken spinning wheel. Mr. and Mrs. Hardy did a magnificent job of suppressing smiles as their relative relentlessly pursued her cross-examination.

"You say you broke it, Joe? How?"

"It was hanging from the ceiling and I touched it."

"Now, Joe, refresh your memory!" Aunt Gertrude said. "A spinning wheel on the ceiling! Bosh!"

Frank sprang to his brother's defense. "But it was only on display," he explained. "It wasn't for sale."

"Sakes alive! Then why did you buy it?" Aunt Gertrude said.

"We had to," Joe said. "There was this big husky fellow, Marcel-"

Aunt Gertrude threw up her hands. "What imaginations!" she exclaimed.

"It's the truth, every word of it," Frank insisted. "We can prove-"

"Oh, I believe you." Aunt Gertrude tossed her head vigorously. "Although the whole thing is beyond me!"

Without another word, Miss Hardy scooped up the pile and marched from the room into the kitchen. In a moment her footsteps could be heard descending to the bas.e.m.e.nt.

Frank and Joe looked at their parents and shrugged in embarra.s.sment.

"Don't worry." Mrs. Hardy smiled. "Your Aunt Gertrude really appreciates what you boys have done."

A telephone call to the Morton home that evening revealed Chet was progressing nicely. "His hair was singed a little in back," Mrs. Morton told Frank. "But otherwise he's pretty much recovered from the shock. Why don't you and Joe come over and see him tomorrow morning?"

"Fine. We will."

Before going to bed, the brothers went to the kitchen for a snack. Aunt Gertrude was there. Still embarra.s.sed about the spinning wheel, Frank and Joe grinned sheepishly. But their aunt seemed to be in good spirits and handed them her personal check for fifty dollars in payment for the antique.

"Junipers!" Joe said. "That's swell of you, considering the condition it's in."

Thoroughly rested after a good night's sleep, the brothers had breakfast and made ready to visit their stout friend. Frank took a few moments to call Biff. "Sorry I can't join you fellows today," Biff said. "Too much work around the house. But in case of an emergency don't hesitate to holler. And tell Chet to keep his chins up."