f work to pull the craft with its heavy
load. At last they approached a vessel lying at anchor in the stream.
Lopez's hail brought an answer immediately.

"Up you go," commanded the outlaw to the boys, as Doright loosened the
shackles. "Over the rail with you now and no monkey work."

So deeply loaded was the schooner--a large three-masted vessel--that the
boys had little difficulty in reaching her rail and vaulting it.
Arriving on deck they found an officer and two or three members of the
crew standing ready to receive them.

"Well, here are the three men you wanted," stated Lopez to the officer.
"I had hard work gettin' them, but they wanted a vessel bad so I signed
'em on. Now to settle up if you please."

"Take these men forward, Johnson, and break 'em in," commanded the mate,
passing some money over to Lopez. "Get a jump on 'em."

A tug took the schooner in tow. As she passed the shipyard Charley
whistled, "Bob White." The mate's fist descended on his head.

CHAPTER XIX

TREACHERY EXPOSED

"He didn't say," replied the watchman. "He left this letter."

Proffering an envelope to Jack the watchman passed on to his duties.
Apparently he had lost all interest in the missive.

Jack looked blankly at his comrades. He held the letter in his hand
unopened, while the others crowded closer.

"Open it up, Captain," urged Tom. "Let's get at this mystery at once.
We're usually shrouded in so much mystery you could cut it with a knife.
What's the good news? Is the treasure discovered?"

"Quit your joking, Tom. This may be more serious than we think. Wyckoff
is not writing letters for the fun of it. He means business."

"I can testify to that," declared Frank. "He surely does mean business.
This treasure stuff is actually real to Wyckoff."

"And that's what makes him so dangerous," Jack mused. "He's really
deluded himself into thinking there is a treasure and that it should
rightfully belong to him. Therefore he gets desperate when he imagines
anyone is trying to take it from him. He's bad medicine."

"Well, let's get at the letter," cried Tom impatiently.

"Yes, open it up, Jack, and let's hear what he has to say."

"Well, here it is," Jack replied unfolding the paper. "He says: 'For the
last time, go back. Your pals are put out of the way and you are next.
The treasure belongs to me and I'm going to have it.'"

"That's a pretty 'howdedo,'" declared Tom as Jack's voice ceased. "I
suppose he thinks