A camp was made upon the higher ground of the knoll and the party went about its task with skill and deliberation. Jointed sounding rods of iron were screwed together and the exact position of the spot determined from Jack Cockrell's chart and description. But neither he nor Joe Hawkridge could be coaxed into lending more active assistance. They were afraid of disturbing the bones of the drowned seaman who had fled from Blackbeard's bloody dirk. Jack had seen him go down and it was not a pleasant recollection. And so these two heroes who had faced so many other perils without flinching were content to putter about half-heartedly and let the others exert themselves.
All one day they prodded and sounded but struck only sunken logs. What gave them more concern than this was the discovery that the slender rods, sharpened to a point, could be driven through one yielding stratum after another of muck and ooze. Through myriad years the decaying vegetable matter of this rank swamp had been accumulating in these layers of muck. There was no telling how deep down the weight of the sea-chest might have caused it to settle.
Mr. Peter Forbes began to lose his youthful optimism and took four men to go and dig in the knoll while the others continued to search for the chest. The wooden cross still stood above the grave of Jesse Strawn and the long-leaf pines murmured his requiem. Having selected at random a place where he thought treasure ought to be, the worthy Councilor wielded a shovel until he perspired rivers.
"Confound it, Blackbeard must have left a scrap of paper somewhere to give us the proper instructions," he complained. "'Tis the custom of all proper pirates. Look at the trouble he has put us to."
"I helped search the cabin afore the brig was set afire," replied one of the seamen, "and all the writin' we found was in the bit of a book with the leaves tore out, same as Cap'n Wellsby made a fair copy of."
"That explains it," cried Uncle Peter. "I have no doubt the vile Blackbeard destroyed his private note of where he hid it, just to make the matter more difficult for us honest men."
This was plausible, but it failed to solve the riddle. A day or two of impatient digging and the portly Secretary of the Council was almost wrecked in mind and body, what with insects and heat, ague and fatigue. The ardor of his companions had likewise slackened. The boat's crew swore that the condemned sea-chest must have sunk all the way to China. Joe Hawkridge still argued that Blackbeard had whisked it away in a cloud of smoke and brimstone. The unhappy Mr. Peter Forbes suggested:
"What say you, lads, to dropping down to the sloop for a respite from this accursed swamp? There we can take comfort and discuss what is to be done next."
Captain Jonathan Wellsby, who was a stubborn man, urged that they fish once more for the sunken chest before taking a rest, and this was agreed to. The sounding rods were plied with vigor and, at length, one of them drove against some solid object deep in the mud. It was more unyielding than a water-soaked log. The iron rod was lifted and rammed down with a thud which was like metal striking against metal. The explorers forgot the torments of the swamp. Uncle Peter Forbes was in no haste to flee the mosquitoes and the fever.
The sailors began to rig the spars and tackle as a derrick set up on the bank of the creek, with grapple hooks like huge tongs to swing out over the water and grope in the muddy depths. Absorbed in this fascinating task, they were startled beyond measure to hear the thump, thump of thole-pins sounding from somewhere below them in the swamp. It was no Indian pirogue. Only a ship's boat heavily manned could make that cadenced noise of oars. Bill Saxby bade the men be silent while he held a hand at his ear and harkened with taut attention. The mysterious boat, following the winding channel of the creek, was drawing nearer. Voices could be heard, a rough command, a curse, a laugh.