But meanwhile no help appeared, and at length Oglethorpe, having discovered that the Spanish force was divided, decided to make a sortie and surprise one part of it. So with three hundred chosen men he marched out one dark night, and stole silently through the woods until he had almost reached the enemy's camp.
Then suddenly a Frenchman who was with the little British force discharged his musket, and fled towards the Spanish camp.
All hope of a surprise was at an end, and Oglethorpe returned hastily to the fort. But that the surprise had failed was not the worst. It was certain that the deserter would tell the Spaniards how weak the British were, and that thus heartened they would soon attack in force. Something, Oglethorpe decided, must be done to prevent that.
So he wrote a letter in French addressing it to the French deserter. This letter was written as if coming from a friend. It begged the Frenchman to tell the Spaniards that Frederica was in an utterly defenseless state, and to bring them on to an attack. Or if he could not persuade them to attack at least he must persuade them to remain three days longer at Fort Simon. For within that time two thousand men would arrive from Carolina and six British ships of war "which he doubted not would be able to give a good account of themselves to the Spanish invaders." Above all things the writer bade the Frenchman beware of saying anything about Admiral Vernon, the British admiral who was coming against St. Augustine. He ended by assuring him that the British King would not forget such good services, and that he should be richly rewarded.
This letter Oglethorpe gave to one of the Spanish prisoners they had taken, who for a small sum of money and his liberty, promised to deliver it to the French deserter. But instead of doing that he gave it, as Oglethorpe had expected he would, to the leader of the Spanish army.
The French deserter at once denied all knowledge of the letter or its writer, but all the same he was fettered and kept a prisoner while the Spanish leaders held a council of war. They knew not what to do. Some thought that the letter was a ruse (as indeed it was) merely meant to deceive them. But others thought that the British really had them in a trap. And while they were thus debating by good luck some British vessels appeared off the coast. And thinking them to be the men-of-war mentioned in the letter the Spaniards fled in such haste that although they had time to set fire to the barracks at St. Simon they left behind them a great cannon and large stores of food and ammunition.
Thus was the little colony saved from destruction.
By his brave stand and clever ruse Oglethorpe had saved not only Georgia but Carolina too. Yet South Carolina had cause for shame, for her Governor had paid no heed to Oglethorpe's call for help, and so far as he was concerned Georgia might have been wiped out. He indeed cared so little about it that when the governors of the other more northerly colonies wrote to Oglethorpe thanking and praising him he did not join with them. But much to his disgust, seeing their Governor so lax, some of the people of South Carolina themselves wrote to Oglethorpe to thank him.
"It was very certain," they wrote, "had the Spaniards succeeded in those attempts against your Excellency they would also have entirely destroyed us, laid our province waste and desolate, and filled our habitation with waste and slaughter. We are very sensible of the great protection and safety we have long enjoyed, by your Excellency being to the southwards of us, and keeping your armed sloops cruising on the coasts, which has secured our trade and fortunes more than all the ships of war ever stationed at Charleston. But more by your late resolution against the Spaniards when nothing could have saved us from utter ruin, next to the Providence of Almighty God, but your Excellency's singular conduct, and the bravery of the troops under your command. We think it our duty to pray God to protect your Excellency and send you success in all your undertakings."
But, although Oglethorpe had many friends, he had also enemies, some even within the colony he had done so much to serve. There were those within the colony who wanted rum and wanted slavery and said that it would never prosper until they were allowed. Oglethorpe, with all his might, opposed them, so they hated him. Others were discontented for far better reasons: because they had no share in the government, and because the land laws were bad.