Meanwhile another fierce fight was going on farther east along the line of the Meuse. On Saturday morning a German army, which had advanced through the Northern Ardennes, crossed the Meuse into the angle between that river and the Sambre, where, you will remember, the Germans had already gained a footing. This new force attacked the right flank of the French, and began to work round to their rear, so as to threaten the line of retreat. With von Buelow pressing hard on the front, and the Saxon army pressing on the right and rear, the French in the angle between the rivers were forced to give way, and in order to save themselves from destruction were obliged to retire to the south. So rapid and confused was this retreat that the French staff neglected to send news of the disaster to Sir John French until the afternoon of next day. He thought that the French line was still holding out on his right; but as a matter of fact he was without any support in that direction, and was left, as the soldiers say, "in the air." Further, von Buelow was now able to spare some of his right-wing troops and send them to help von Kluck, who was about to swoop down on the British line. [Footnote 14: See map, p. 19.] [Footnote 15: Shar-leh-rwa´.] [Footnote 16: Ski (_shē_) are long, narrow pieces of wood, from 7 to 12 feet in length and from 2½ to 3 inches wide, which are bound to the feet with leather straps, and are used for travelling rapidly over snow. The Chasseurs Alpins--that is, the French soldiers who operate in the Alps--wear ski.] [Footnote 17: See diagram p. 15] [Footnote 18: _Leen-ye´._] [Footnote 19: _Katr-bráh._] CHAPTER IV. THE BATTLE OF MONS. It is a peaceful Sunday morning; the sun is shining and the bells are ringing. The Belgians in Mons and the surrounding mining villages are flocking towards their churches; but in the British lines our soldiers are hard at work in their shirt-sleeves deepening the trenches and making ready to meet the threatened attack. As the morning wears on a German Taube[20] comes gliding high over the trenches like a huge vulture seeking its prey. It circles round and round, and more than one enterprising "Tommy" discharges his rifle at it. Now a British aeroplane ascends to give it battle; but the Taube makes a long curve northward, and disappears in rapid flight. Meanwhile our own airmen and cavalry scouts are coming in with the news that large numbers of the enemy are moving through the green woods towards the centre of the line, and that towards Binche and Condé other columns are on the march. * * * * *