Second, that he would set at liberty half of his slaves and all the other prisoners without ransom.

Third, that he would send home freely those four chief inhabitants of Gibraltar whom he held as hostages for the ransoms which had been promised.

Don Alonso rejected these propositions instantly, considering it dishonorable to grant them. In return he sent back a message to the effect that if the pirates did not surrender themselves voluntarily into his hands within two days under the conditions of his letter, he would immediately come and force them to do it.

Deeply angered by this message, Captain Morgan put everything in order for fighting, resolving to get out of the lake by main force without surrendering anything. In the first place he commanded that all the slaves and the prisoners should be tied and guarded very closely. After this his men gathered all the pitch, tar and brimstone they could find in the town, and with them stocked the fire ship, which we have spoken of before. They mixed the powder, the brimstone and the tar with great quantities of palm leaves, and arranged everything so that it would burn quickly and furiously. They set their counterfeit cannon in proper position at the portholes, and under each fastened heaps of powder so that they would explode with great force and noise. In some of the portholes they fastened little native drums, and upon the decks they placed logs of wood dressed as men, wearing hats and coats and carrying swords and muskets.

When the fire ship was fully fitted out in this manner, they prepared to enter the passageway into the lake. The prisoners were all put into the great boat, and in another they placed all the plate, jewels and other rich things which they had acquired. In the same ship were placed the women and the wounded and suffering. The heavy goods and bulky merchandise were distributed among other vessels, each of which was manned by twelve well-armed sailors.

The fire ship was ordered to go ahead of the rest of the vessels, and at the earliest moment to grapple with the largest of the Spanish ships. Before starting, Morgan had exacted from each of his comrades an oath in which he vowed to defend himself and his comrades against the Spaniards, even to the last drop of his blood, and never under any circumstances to beg for quarter. In return for these pledges, Morgan promised his men that all should be very well rewarded if they were successful.

It was on the thirtieth day of April, 1669, that the buccaneers made their courageous start to find the Spanish. It was growing dark when Captain Morgan found the three ships riding at anchor in the middle of the passageway into the lake, and fearing to attack in the darkness, he ordered his vessels to come to anchor, resolved that if the Spanish attacked he would fight them from that position.

All that night the valiant captain and his men kept a careful and vigilant watch, for the Spanish were almost within gunshot. No sooner had daylight come, however, than the buccaneers weighed anchor and again set sail, starting their course for the Spanish vessels. The latter, seeing them come, themselves put on sail and moved to meet the attack. The fire ship in its place at the head of the line soon met the largest ship, and instantly grappled itself firmly to her side. Too late the Spaniards discovered their terrible danger, and although they made strenuous efforts to free themselves, they were unable to do so. The flames from the burning vessel seized upon the timber and rigging of the ship, and in a very short space of time consumed the stern of the vessel, leaving the fore part to sink into the sea, carrying with it the survivors.

[Illustration: THE FIRE SHIP GRAPPLED THE SPANIARD]

The second Spanish ship, seeing that the pirates were successful in destroying the admiral's vessel, fled toward the castle, but being unable to escape, they sunk their vessel, preferring to lose their ship rather than fall into the hands of the bloodthirsty pirates. A portion of the sunken ship extended above the shallow water and was set on fire. The third vessel was captured by the pirates, all of whom now gave their attention to the Spaniards who were swimming toward the shore from the two wrecked vessels. Many were overtaken, but none would ask for quarter, preferring to die rather than be given life by the pirates.