This information, if such it could be called, was jotted down in fanciful letters instead of writing, and immediately beneath it appeared the rude drawing of a hut, a crooked tree, and a rock or piece of coral. From one to the other arrows were placed to mark the probable direction as given above, while below was what looked like a representation of an island or key.
Then was written, in angular penmanship, the following:
We solemnly swear not to disturb the treasure buried by us this day, except in the presence of all the owners, or after receiving proof that one or more are dead.
(Signed) BARTH MEADOWS.
His PEDRO X GONZALES. mark.
E. BONN.
His JOSEF X HARTTMAN. mark.
For several moments after Harry ceased reading this singular document the boys stood staring at the faded characters in silence, and then Jim exclaimed:
"I'll bet them was pirates what wrote that, an' if we could only make out what it means there'd be a big pile of gold found. Let's go on board an' show it to Bob!"
The mere suggestion that they had the clew to a buried treasure was sufficient to throw all three into a perfect fever of excitement, and after carefully gathering up the coverings they started at full speed for the shore, shouting to each other, as they ran, the most improbable theories concerning the ancient document and its signers until the key resounded with their cries.
"Perhaps the men who ran away with the brig belong to the same gang who hid the paper," Walter suggested in a tremulous tone, glancing behind him every few moments, as if fancying they might be pursued.
"That couldn't be," Harry replied, panting because of the rapid pace, "unless they've taken the gold with them."
For an instant the boys' joy decreased very materially, and then grew strong once more as Jim said, confidently:
"If they had we'd seen somethin' of it; but them duffers didn't have any baggage when they come aboard. The Bonita wouldn't 'a' left the cove so quick if the men had known about this. I tell you, fellers, it was lucky for us that they stole the brig!"
[Illustration: Fac-simile of paper found by the boys.--(See page 157.)]
Then, as if unable longer to act like rational beings, the explorers burst into loud, incoherent shouts, which sadly lessened their speed because of the extra amount of breath required to continue the outcries.
It was this uproar which Joe heard, and he and Bob were wholly at a loss to understand what had happened as the yawl, with her noisy crew, approached the tug.