After this he proceeded to the neighborhood of St. Augustine; and, having placed the greatest part of his troops in ambuscade, marched with the rest almost to the walls of the fortress, in hopes that the Spaniards, upon seeing so small a party, would have sallied out to have engaged it, in which case he was resolved to have made a retreating fight, in order to draw the enemy into the ambush which he had prepared for them. But, it seems, that by accident they discovered the concealment of the troops, and deemed it prudent to remain in their stronghold. This stratagem having been frustrated, Oglethorpe, perceiving that an assault would be unavailing, marched back to the river, where he continued for some time, expecting that the enemy would come out, and endeavor to drive him from their territory, but, as they made not the attempt, and as the affairs of the Colony as well as his own, required his presence in England, he returned, to make arrangements for going thither. Having seen that the fortifications on St. Simons and the other islands were repaired and greatly improved, Oglethorpe took passage on the 23d of July, 1743, in the guard-ship commanded by Captain Thompson, having with him Colonel Heron, Mr. Eyre, sub-engineer, and several others belonging to the regiment, and arrived in London on the 25th of September, where his personal presence was required to meet and answer an impeachment lodged against him in the War-office by Lieutenant Colonel William Cook. As soon as Oglethorpe arrived, he insisted that the allegations should be examined by a board of General Officers; but, as Cook gave in a list of several persons in Georgia and some in South Carolina, who, he said, were material witnesses, no investigation could be had till they should be heard. In consequence of this, and other delays, the Court Martial was not opened till the 4th of June, 1744. It continued two days in session; when, after a strict scrutiny into the complaint, article by article of the nineteen specific charges, the board were of opinion that "the whole and every article thereof was groundless, false, and malicious." On the presentation of the Report to his Majesty he was pleased to order that the said Lieutenant Colonel Cook should be dismissed the service. This indictment by one who had been treated with great kindness, and who owed his preferment to the rank of Lieutenant Colonel to the particular favor of the General, was not only ungrateful, but insidious and base. The faithful Annalist of America, the Reverend Doctor Holmes, closes his reference to this transaction with this just and honorable reflection: "By the decision of this board, the character of this able General now appeared in resplendent light; and his contemporaries acknowledged, what impartial history must record, that to him Carolina was indebted for her safety and repose, as well as Georgia for existence and protection."[1] [Footnote 1: _American Annals_, II. 19.]