To a man so tender as Drake ever was for the lives of his men and the safety of his ships, to attack such a place might well have appeared hopeless; but the originality of the amphibious corsair at once descried a hole which had escaped all the science of the Spanish martialists. Instead of entering by the Bocca Grande, with consummate skill and daring he piloted the whole fleet through the dangerous channel at the extreme end of the lagoon. The only impression which so hazardous a movement could create in the minds of the Spaniards was that he was about to repeat his Santo Domingo operations, and land his troops there to attack from the mainland. Such an impression must have been confirmed as, moving up the lagoon, he anchored opposite the Bocca Grande and threatened the harbor fort with his boats; but Drake's project was far different. Instead of being landed on the mainland, Carleill with eight companies was quietly slipped ashore in the Bocca Grande, with instructions to make his way diagonally through the woods that covered the spit till he reached the seashore, and then, instead of advancing on the front of the intrenchments, to wade along through the wash of the surf till he was within striking distance of the Spanish position.
Meanwhile Frobisher advanced with the flotilla against the harbor fort, and as soon as Carleill was heard in contact with the enemy's pickets he opened fire. The boat-attack was repulsed--indeed, it may only have been intended as what soldiers then called "a hot alarm"--but Carleill was completely successful. By the march through the surf he had not only evaded the obstacles which the enemy had so carefully prepared, but he had been covered from the fire of the galleys in the harbor, and had never so much as entered the fire-area of the heavily armed intrenchments. After a desperate struggle at push of pike, the position was carried by assault, and once more so hotly was the advantage pursued that in one rush the whole town was captured. The garrison fled across the bridge to the hills, and the next day, when Drake brought up the fleet to bear upon the fort, that also was evacuated.
No success was ever better earned and few more richly rewarded. Cartagena was the capital of the Spanish Main, and though much younger than Santo Domingo it was far wealthier. It yielded rich loot for the men; and for his shareholders Drake, after a long negotiation, succeeded in exacting a ransom of a hundred ten thousand ducats, besides what he got for an adjacent monastery. Though to all this plunder Drake could add the consolation that he had destroyed the galleys and shipping which crowded the port, and blown up the harbor fort which the Spaniards had forgotten to include in the convention, he was still unsatisfied. Well knowing that by an advance up the Chagres River in his boats Panama lay at his mercy, he was resolved with its capture to crown the campaign; but as he lay in Cartagena the sickness, which had never really ceased, broke out again with new virulence, and made such havoc with his force that he had reluctantly to confess that Panama must wait. To capture it with the crippled means at his command was impossible, and the only question was whether Cartagena should be held till he could return with reënforcements.