With these points carefully fixed in mind the two boys made a careful survey of the ground. The "Happy Thought" moved swiftly and easily over the short, firm grass of the golf course, and it was evident that the bicycles would have no difficulty in operating in the open. But how would they ever have a chance to do so with the enemy under cover in the woods? Exposure would mean destruction, and, moreover, they could expect no support from the main body under Colonel Howard. At all risks the "Cardinal's Nob" must be held, and, it was clear that Colonel Howard would act strictly on the defensive. The bicycle corps, it is true, could assist in the defence as an unmounted body, but that was not what Fred wanted. Could not the wheelmen be used as an independent force without materially weakening the defence? Of course the "Cardinal's Nob" must be held, but might it not be strategy to both repel the assault and destroy the attacking force?

"And I think it is possible," thought Fred to himself as the "Happy Thought" rolled slowly back to Fairacre.

Easter Monday dawned clear and warm. The armory was a busy place at nine o'clock, and every effective man was present to answer to his name. Fred's force was complete just as he had counted it up, and the machine-guns, mounted on the "Happy Thought" and Alec Jordan's tandem, looked particularly wicked and fit for work. The ammunition was served out, the general orders read, and at ten o'clock the two forces took up the march. Fred on the front seat of the "Happy Thought," and with forty wheelmen armed with repeating carbines, headed the line, and the rest of the bicycle corps, under command of Acting-Lieutenant Alec Jordan, formed the rear-guard.

The "Cardinal's Nob" was reached at half past ten, and Colonel Howard summoned a council of war. There was still half an hour before hostilities would commence, and it was necessary to consider carefully Colonel Camp's probable line of attack, and to devise an effective checkmate.

Colonel Howard briefly outlined the situation as follows:

1. The "Blacks," or Colonel Camp's force, will occupy "Sebastopol" with their artillery, and a false demonstration will be made against the point 1.

2. A strong flanking force will be sent around by way of the Swamp Road (4) to make an attack in the rear of "White" at the bridge (3).

3. At the moment that the attack on "White's" rear begins, "Black's" main force, under cover of the artillery, will abandon the demonstration against 1, and endeavor to carry the "Cardinal's Nob" by a charge across the open and a general assault at 2, the most practicable scaling-point.

"We may therefore expect, gentlemen," concluded Colonel Howard, "a pretty hot corner at the point 2, and a simultaneous attack at the bridge (3), which, if successful, will place us between two fires. Obviously we must, above all things, protect our rear. Captain Jones will therefore take one hundred men and occupy a position near the bridge (3), to meet and, if possible, ambuscade the expected flanking force. As for the bicycle corps—"

It was Fred's chance, and he improved it. Colonel Howard listened attentively to what he had to say, and turned to his staff for their opinion. The suggestion was a daring one, for it involved a separation of forces in the face of an enemy numerically superior, but it looked feasible, and if there was no hitch it meant defeat to the "Blacks." There was not much time for deliberation, and Colonel Howard acted quickly.