And as they charged, from either side and from the front, flame and smoke belched out, and the valley echoed with the sound of exploding cannon. Shells shrieked overhead, rolled like huge cricket-balls along the turf, and burst in the midst of the gallant horsemen, sweeping scores to the ground. And yet they did not flinch. Instead they dug their spurs still deeper, till they were actually racing for the Russian enemy. What a sight! A green-clad valley, cloaked in eddying smoke, which was rent asunder every second by a blinding flash; and through it, all that remained of that galloping 600 now clearly visible, and a moment later plunging deep into the reek and smoke of the cannon. Suddenly the guns in front ceased to fire. The first line, or rather what was left of it, rode over them and dashed pell-mell into the cavalry behind, breaking them and scattering them like chaff. And now came the moment for the second line, and for Phil and his friend. It was indeed a race, men and officers doing their utmost to outdistance the others. Long ago Phil had lost sight of his companion in the smoke, but now a riderless horse, frenzied by fear, came up and thundered along on either side of him. Suddenly a ringing "Tally-ho!" came from some officer in front, and with a roar of furious excitement the line rode over the smoking guns and dashed full into a huge mass of Russian cavalry. Phil found himself still with the riderless horses alongside, amidst the men of the 11th Hussars. Standing in his stirrups, he leant over and cut savagely at the grey-coats which seemed to rise up on either side of him, while a loud hissing sound, produced by the excited Russians, filled the air around. There was a rush and a crash, and the horse on his right was swept away. He scarcely noticed it, but, seeing a comrade at that moment fall in front of him, he pulled his pony in with a jerk, and made such good play with his weapon that for a moment he kept the long Cossack lances from the fallen man. Whack! A tremendous blow on his shoulder sent him flying from his saddle to the ground, where, looking up, he was just in time to see Tony standing in his stirrups with sabre raised on high. Down it came on the head of the man who had just struck him from his pony, and with a groan the Russian flopped upon his horse's neck. "Up! Up yer get!" shouted Tony, laying about him with a will. "Full yourself together, old man." Phil sprang to his feet, and, holding his sabre in his mouth, lifted the prostrate form of the trooper. "Hold on here, Tony," he cried. "That's it. Now wait a minute. Those horsemen have cleared away." Rent asunder by the terrible British horse, the Russians had in fact opened out and retired, disclosing the bulk of their army forming into square close at hand. Phil took advantage of the lull. A riderless horse stood close at hand, and in a few seconds he was in the saddle. Then he sheathed his sabre, and, riding up to Tony, said: