Numbers did come in.

He moved with "marvelous celerity." When he had, for the time and place, a large force of rebels, he marched, by stream and plantation, tobacco field and forest, forge and mill, through the early autumn country to Jamestown.

Civil war was on.
Across the narrow neck of the Jamestown peninsula had been thrown a sort of fortification with ditch, earthwork, and palisade.

Before this Bacon now sounded trumpets.

No answer coming, but the mouths of cannon appearing at intervals above the breastwork, the "rebel" general halted, encamped his men, and proceeded to construct siege lines of his own.