"Not a sign," Frank replied.
"Do you think Gilman knows anything about that ghost we saw last night?" Chet put in.
Frank shrugged. "Remember, Adrian Copier"s still at large, and his partners. If we only had some leads to their ident.i.ty!"
Joe reported that he and Chet had found Turtle Island deserted. Everett and his rowboat were gone.
There was no trace of the stolen paintings.
"His dog was there, but chained up, lucky for us," Chet added.
Mr. Davenport declared he himself would visit Chauncey Gilman that afternoon. "I don"t like him, but I won"t judge him guilty till it"s proved."
The boys had a late lunch, after which Frank suggested revisiting the fort. "We can give the interior a good going-over this time," he said.
Jim Kenyon offered to accompany the boys, since he had the afternoon free.
"Swell," said Joe. "We could use a hand combing the fort."
After getting some digging tools, they climbed into the bateau and set off. When they reached Senandaga, the foursome went directly through the entrance tunnel. Pausing in the middle of the parade ground, Frank took out their map.
"Let"s see. We"re facing south." He pointed to a long, roofless building to his right. "That must be the West Barracks-"
"Or what"s left of it," Chet interrupted.
"-And the ruin behind us-here-the North Barracks. This building to our left was for officers. Other than the two demilunes outside, the four corner bastions, and the ramparts themselves, that"s the setup aboveground."
"How about the dungeons?" Joe asked. "Jason Davenport must have been kept prisoner in one."
Frank turned the map around. "They were under the West Barracks." They walked over to the stone structure, which rose just above the rampart. Rubble clogged an entrance which evidently led underground.
"It"ll be a job getting down there," Frank said.
"Of course General Davenport likely had the run of the fort," Mr. Kenyon reminded them. "He could have found the chaine d"or anywhere."
They decided to comb the barrack ruins first, Frank taking the one to the west, Joe the old officers"
building, and Chet and Uncle Jim the North Barracks.
Originally three-storied, these were now little more than sh.e.l.ls with empty window and door frames. Two bleak chimneys remained standing.
Joe climbed through a broken wall section and began searching among the chunks of stone and mortar, most of it from the fallen upper floor.
Hours pa.s.sed as the boys and Jim worked. Senandaga echoed with the sound of shovels and shifting stones. Each began to doubt the clue could ever be found. What if it were hopelessly buried?
"Look, here"s an old sword blade!" Frank called out.
"Great!" Chet responded. "We just found a rusted grapeshot rack!"
Joe later uncovered a wooden canteen almost intact. But none of them saw anything resembling a tomahawk or a chain. Finally the weary searchers took a break, relaxing on the sh.o.r.e near the bateau.
Suddenly they were startled by men"s angry shouts from inside the fort!
Frank and Joe, followed by Chet and his uncle, ran up the slope and through the tunnel, then halted in amazement.
At one side of the parade ground, two men were furiously exchanging blows!
CHAPTER XVIII.
A Sudden Disappearance "RENE FOLLETTE and Lloyd Everett!" cried Frank in astonishment.
The Hardys, Chet, and Jim Kenyon rushed over and separated the fighting men. Mr. Kenyon silenced them. "What"s this all about, Rene?"
"This hermit-he insults my ancestor, the great Marquis de Chambord!"
Everett snorted. "Who was brought to heel by my forebear, Lord Craig!"
"Then it"s you two who have been raising the French and British flags," Frank declared.
Reluctantly, first Everett, then Follette admitted having done so to have his country"s flag flying for Senandaga Day. Each man had lowered the other"s banner, but neither had been looking for the golden chain. Each had, however, come at various times to search for proof of his ancestor"s victory.
Rene grunted. "You, Everett, struck me unconscious last Tuesday!"
"Utter nonsense! Besides-you struck me cold yesterday!"
"A lie!"
The Hardys exchanged glances. Who had knocked out the Englishman and the sculptor? Frank asked them if they had seen a black-robed "ghost" around the fort.
"Ghost, no!" Follette waved emphatically. "But I still feel that blow on my head!"
Jim Kenyon, with some difficulty, got the two to shake hands and declare a truce.
After the men had pushed off in their boats, the boys and Uncle Jim resumed their explorations, skirting the ramparts. Frank and Joe noticed small openings at foot level along the entire parapet, evidently rifle ports to reinforce cannon fire. But looking through one, Joe found it obstructed.
"Look!" he called to his brother. "Somebody"s wedged a tin can in here! And in the next opening, too!"
Frank found the same thing true along the north rampart.
"This explains the eerie noise of the wind we heard!" he said. "These might have been stuck in to make the spooky sounds!"
Suddenly he knelt down and yanked out a rectangular can from one port. Joe sniffed at the open top.
"This held kerosene!" he exclaimed. He pulled the cork from his pocket. It fit perfectly.
Frank held onto the tin. Crouching, the Hardys moved along the notched wall guarding the fort. Bend by bend, they checked for markings or loose stones.
"Let"s try the demilunes," Frank urged at last.
They were just crossing the wooden planking to the southern demilune when Chet"s voice rang out.
"Frank-Joe-Uncle Jim, come here!"
Rushing down to the end of the North Barracks, the others found Chet holding up a piece of black cloth.
Excitedly the Hardys examined it.
"Frank-you think-?"
"It"s from the ghost? Could be!"
Jim Kenyon took the torn fragment and rubbed his fingers over the cloth.
He looked at the boys. "If so, your ghost got his costume from Millwood! This is a piece of a painting smock-dyed!"
He pointed out white markings still faintly visible beneath the black dye. They spelled "Mil."
"Wow!" Chet burst out. "You think the phantom is an artist?"
"Whatever he is," Joe said, "how did he walk on water?"
Frank showed Chet and his uncle the kerosene tin, and told of the other cans he and Joe had found.
"They look like fruit-juice cans," he added. "Maybe someone bought supplies in Cedartown."
"Like Adrian Copier!" Joe ventured. "Or a crony. I"ll bet a cracker that thief is in hiding near Senandaga."
Although disappointed at not unearthing the treasure clue, they felt encouraged by Chet"s discovery, and the Hardys planned to try tracing the piece of smock.
They had just pulled up the bateau on the Millwood beach when Alex the chauffeur came running toward them, a troubled expression on. his face.
"What"s the matter?" asked Uncle Jim.
"Have any of you seen Mr. Davenport?"
They shook their heads. "No, we just came from the fort," Frank answered. "Why?"
"He had me drive him to Mr. Oilman"s early this afternoon," Alex reported, worriedly fingering his cap.
"Mr. Davenport was to phone me to pick him up before dinnertime. It"s past that now, and I haven"t heard a word!"
"Do you think something has happened to him?" Joe asked.
"I just telephoned Mr. Oilman. He told me he hasn"t seen Mr. Davenport." Alex added that the art patron had gotten out of the car on the road just before the critic"s property.
"Could Oilman be lying?" Chet put in.
"Let"s find out," Joe urged.
Hastily leaving their gear outside the mansion, the boys jumped in the limousine and drove to Oilman"s home. The man appeared completely bewildered. "I don"t know what"s going on," he whined. "Everything is blamed on me."
A thorough search of the grounds proved futile. There was no sign of Jefferson Davenport. Next the Hardys and Chet made inquiries in town. No one there had seen the man, nor could any of the Millwood students provide the boys with a clue.
By midnight, with still no word on the millionaire, Chet"s uncle telephoned headquarters. The chief said a missing-person alarm would be sent out.
Next morning the school buzzed with the news of Mr. Davenport"s disappearance. The Hardys felt that there was a strong link between it and the art thefts.
"It could be a desperate move by Copier and his gang to get information about the treasure," Frank said.
"I move we check the fort again. If that"s their hideout, they may be questioning Mr. Davenport there."
Joe and Chet agreed, and the three hurriedly took off in the bateau.
Once inside Senandaga, they searched for the millionaire. Finding no sign of him aboveground, they decided to tackle the dungeon entrances.
There were two in the West and two in the North Barracks. "Let"s try the north first," said Frank. The opening was blocked by what seemed tons of rubble. The old steps were barely visible.
"How"ll we ever dig through this stuff!" Chet groaned.
The boys found many of the rocks too large to be moved with shovels. In minutes their faces were covered with perspiration.
They tried the second north entrance. Here they found decayed timber poking out of the rocks. Frank and Chet lifted out a rotting door and set it against a wall.
The diggers proceeded, making a little headway.
Suddenly they heard a splintering thud. The boys whirled to see a hatchet embedded in the old door! It had narrowly missed Frank"s head!
"Who threw that?" Joe yelled angrily.
"Look!" Chet quavered, pointing.
They saw, fleeing out the main gateway, a hooded black figure!
The three boys raced in pursuit.
"You two go that way!" Frank yelled, jumping into the ditch and running off to the left. Chet and Joe sped in the opposite direction.
But they circled the fort walls without spotting the ghostly figure. Back at the digging site, Joe pulled the hatchet from the door. "It"s an ordinary camping type, but I"m glad we weren"t in its way!"
"Who threw that?" Joe yelled angrily Frank studied the broad blade of the ax, then took out the photostat of the fort map and spread it on the ground.
"What"s up?" Joe asked curiously.