From Diary of the American Revolution, Vol I. Compiled by Frank Moore and published in 1859.
Lord William Campbell, Governor of South Carolina, has fled with the utmost precipitation on board the man-of-war in the harbor; the committee of Charleston having very fortunately discovered that his excellency had employed one Cameron, an Indian commissary in the interior parts of that province, to engage the Indians in the ministerial service. He had actually enlisted six hundred of them, and furnished them with every necessary in order to butcher the inhabitants of the back country. This plan was discovered by a gentleman who seized the express on its way from said Cameron to the Governor, whom he knew to be disaffected to the American cause, and conveyed the dispatches to the provincial committee. The gentleman disguised himself in a drover’s habit, and attended the express to the governor’s house, heard the conversation between them, and then discovered the whole plot to the committee. 1
1 Gaine’s Mercury, October 9.