And now was a chance for a display of military science on the part of Gage and his three major-generals. There stood the little low redoubt, unflanked and unsupported by any other fortifications, easily cut off from its own line of relief or retreat. If now Gage had promptly seized the isthmus, drawn his ships up close, and dragged a battery to the top of Bunker Hill, the American force could very soon have been driven to surrender. Ruggles, the Tory brigadier, is known to have advised this, and there were some among the British leaders who urged it. The general feeling, however, seems to have been that it would be unmanly to catch the Americans in the trap which they had laid for themselves. In a hasty council of war it was decided to assault the redoubt in the good old British fashion of marching up to its face. Gage was in no hurry even for this. Contenting himself with ordering the shipping and the Boston batteries to fire upon the little fort, he gave the Americans every chance to complete their defences, while leaving the way open for reinforcements. In a leisurely way he set about preparing an expedition to cross Charlestown ferry. The men were mustered, and equipped as for a march.

Howe was to take charge of the assault, and Burgoyne and Clinton to direct the Boston batteries. The fleet joined in the fire. From Copp's Hill, from Barton's Point, from five ships of war, and from a couple of floating batteries, such a storm of roundshot was poured upon the redoubt that its defenders were amazed, and on the death of a comrade were ready to stop work. But Prescott, coolly insisting—against the protest of a horrified chaplain—that the body be immediately buried, took his stand upon the parapet, and from there directed the finishing of the redoubt.

In this position he was seen from Boston. Gage, handing his field-glasses to a Tory who stood near him, asked if he recognized the rebel. The Tory was Willard of Lancaster, a mandamus councillor, who well knew Prescott's declared intention never to be taken alive.

"He is my brother-in-law," he replied.

"Will he fight?" asked Gage.

"I cannot answer for his men," said Willard; "but Prescott will fight you to the gates of hell!"[93]

At the redoubt one of Prescott's aids followed his example, and walking back and forth on the parapet the two gave courage to their men. These fell to and completed the work. The rampart was raised to a considerable height, platforms of earth or wood were made inside for the defenders, and at about eleven o'clock the men stacked their tools and were ready.

The redoubt, when thus finished, was roughly square, about "eight rods on the longest side," which had a single angle projecting toward the south. Running northwards from the northeast corner Prescott had made a breastwork of perhaps two hundred feet,[94] to prevent flanking. It stretched toward the Mystic River, but fell short by more than a hundred yards.