Davis, the notorious pirate, soon joined him with a well-armed ship manned with one hundred and fifty men. Here was collected as fruitful a nest of villany as the world ever saw. They plundered and captured whatever came in their course. These vessels, with other pirates, soon destroyed more than one hundred trading vessels on the African coast. England entered into a kind of compromise, previously to sending a squadron against them, by offering pardon to all who should present themselves to the governor of any of her colonies before the first of July, 1719. This was equivalent to offering themselves to serve in the war which had commenced against Spain, or exchanging one kind of brigandage for another, by privateering against the Spanish commerce. But from the accounts of their prisoners very few of them could read, and thus the proclamation was almost a dead letter. In 1720, Roberts, a hero of the same class, anchored in Sierra Leone, and sent a message to Plunket, the commander of the English fort, with a request for some gold dust and ammunition. The commander of the fort replied that he had no gold dust for them, but that he would serve them with a good allowance of shot if they ventured within the range of his guns; whereupon Roberts opened his fire upon the fort. Plunket soon expended all his ammunition, and abandoned his position. Being made prisoner he was taken before Roberts: the pirate assailed the poor commander with the most outrageous execrations for his audacity in resisting him. To his astonishment Plunket retorted upon him with oaths and execrations yet more tremendous. This was quite to the taste of the scoundrels around them, who, with shouts of laughter, told their captain that he was only second best at that business, and Plunket, in consideration of his victory, was allowed to escape with life. In 1721, England dispatched two men-of-war to the Gulf of Guinea for the purpose of exterminating the pirates who had there reached a formidable degree of power, and sometimes, as in the instance noted above, assailed the establishments on shore. They found that Roberts was in command of a squadron of three vessels, with about four hundred men under his command, and had been particularly active and successful in outrage. After cruising about the northern coast, and learning that Roberts had plundered many vessels, and that sailors were flocking to him from all quarters, they found him on the evening of the third of February, anchored with his three vessels in the bay north of Cape Lopez.