Distance, and the moving figures on both sides, were the safety factors in the running fight, if it might be so termed. Suddenly Alfred gave a cheer and Ralph turned his head.
"What is it?" he asked.
"Our cavalry are coming. Hurrah," said Ralph.
Like an avalanche a troop of fifty horsemen came along, and Alfred did not check the machine. The cavalry opened an avenue through which he guided the motorcycle, and when they emerged from the lane thus made, he halted.
The boys heard an order, and one-half of the command started on a terrific pace to the south. The Uhlans did not wait to ask any questions, but turned and fled. The boys watched the fascinating scene until they were out of sight. The officer inquired as to their mission, and when they presented their papers, and stated that they must deliver the papers at the camp at Neerwinden as early as possible, the officer gave them minute instructions which would take them through Altenhoven without going to St. Trond, thus making it a much safer trip than it would otherwise have been.
Map of Liège