And yet an admirable restraint was noticeable in the movements of the attacking troops. In the heat of the battle and joy of victory it was pardonable for the men to wish to push on beyond the protection of their artillery. With a very few exceptions the various units kept well under control. Never was the maxim "Hasten slowly" better applied.

A motor-cyclist, riding furiously and yet avoiding the yawning shell craters with a dexterity acquired by long practice, pulled up by the side of the stationary Tank. With the engine still running and keeping the machine balanced by placing one foot on the ground, the grimy mud-caked dispatch rider delivered his message.

"There's a Tank bogged fifty yards south-east of Henricourt Farm, sir," he reported. "The CO. sends orders for you to proceed to her assistance."

"Very good," replied Setley, and closing and locking the door, he gave instructions for full speed ahead to the aid of his crippled consort.

CHAPTER XV

THE BOGGED LANDSHIP

"Full speed ahead represented a speed of nearly ten miles an hour, not taking into consideration detours and slowing down to avoid craters and other obstructions. Henricourt Farm, Ralph found by consulting his large scale map, was approximately two miles away, and on the eastern slope of Vimy Ridge. Barring accidents, the Tank ought to be on the spot in fifteen minutes.

Already the motor-cyclist dispatch-rider was speeding over the rough ground on his return journey. Setley could not help admiring the pluck and determination of the man. Not only had he to avoid shell-holes, heaps of debris and stray strands of barbed wire, but the while desultory shells from the German long-distance guns were "watering" the ground in a vain hope of checking the irresistible British advance.

Even as Ralph looked a projectile struck the ground almost under the dispatch-rider's front wheel. With a lurid flash the shell burst, throwing masses of earth in all directions. Through the yellowish-green smoke the subaltern had a momentary glimpse of the motor-bike flying in one direction, the rider in another.