subsided and the Yellow Parrot was churning its way through calm waters. Frank was returning from deck watch when he saw his brother walking down the passageway toward him.
âHi, Joe!â he called out. âWhen were you sprung from the brig?â
âA few hours ago. But they put me to work right away in the engine room. Iâm bushed.â
âI donât have to be back on watch till midnight,â Frank said. âLetâs get some sleep. Then weâll plan our next move.â
The boys slept soundly for several hours. After a late lunch in the galley Frank told his brother that he was still determined to examine the logs.
âIâm with you,â Joe said. âBut youâve already been caught there once.â
âThatâs a chance weâll have to take,â Frank told him. âCome on.â
They edged their way toward the hold and were elated to find no crewmen in the area.
âItâs pitch black in here,â Joe whispered as the two entered the hold and closed the hatch behind them.
âWe donât want to turn on the lights,â Frank said. âUse your flashlight.â
They directed their beams of light at the pile of logs.
âFunny thing,â Frank muttered.
âWhatâs that?â
âI might have just imagined it, but when the logs rolled back and forth across the deck, some of them sounded as if they werenât completely solid. They sounded hollow.â
âYou mean,â Joe began, âthat theââ A faint noise caused him to stop abruptly.
âSwitch off your light!â Frank hissed.
The boysâ pulses quickened as they stood motionless and waited in the darkness. Then they heard the noise again. This time it came from a point directly behind them.
The Hardys whirled around. At the same instant they were blinded by an intensely bright flash of light.
âIâm trying to help you!â a man said. âStop your investigation. Get off this ship as soon as you can!â
Before either boy could question the man, there was the sound of the hatchway door being slammed shut as he exited from the hole.
âWhat now?â Joe asked.
âWeâd better get out of here,â Frank said. âThat guy mightâve been spotted leaving. He could bring someone to check this place out.â
The boys hurried to the hatch. They eased open the door, saw that the area was clear, and darted out. Back in their quarters, they discussed what had happened.
âWhoever it was,â Joe remarked, âhe must be the one who wrote the warning note.â
âWithout question,â his brother replied. He paused for a moment. âBut Iâd like to know what his game is. If he knows who we are, why is he being so mysterious about it?â
âCould be heâs holding out for money,â Joe suggested. âI mean, he might be planning to demand payment in exchange for being quiet.â
Frank pondered this. âI doubt it. If that was his motive, he certainly would have approached us with a deal by now.â
âWhatâs our next move?â
âLetâs go on deck and take a walk around the ship. We might come up with a lead.â
Strolling along in a nonchalant manner, the Hardys watched as the sailors went about their duties. As they were passing the radio room, Frank suddenly grabbed his brotherâs arm.
âListen!â he whispered excitedly.
The door was partially open. Inside, two men were engaged in conversation. One of the voices belonged to the stranger they had encountered in the hold!
âGood grief!â Joe exclaimed in a low tone. âThat must be the guy weâre after!â
âLooks that way!â
A few seconds later the two men appeared in the doorway, still talking. One of them looked like an ordinary sailor. The other was a lean, red-haired young man with pleasant features. Apparently he was the shipâs radio