In eight days they had taken nearly 10,000 prisoners. By the night of March 28, 1915, the entire line of sixty miles from Dukla to Uzsok was ablaze--the storm was spreading eastward. Like huge ant hills the mountains swarmed with gray and bluish specks--each a human being--some to the waist in snow, stabbing and hacking at each other ferociously with bayonet, sword, or lance, others pouring deadly fire from rifle, revolver, machine gun, and heavy artillery. Over rocks slippery with blood, through cruel barbed-wire entanglements and into crowded trenches the human masses dash and scramble. Here, with heavy toll, they advanced; there, and with costlier sacrifice, they were driven back. Fiery Magyars, mechanical Teutons and stolid muzhiks mixed together in an indescribable hellbroth of combative fury and destructive passion. Screaming shells and spattered shrapnel rent the rocks and tore men in pieces by the thousand. Round the Lupkow Pass the Russians steadily carved their way forward, and at the close of the day, March 29, 1915, they had taken 76 officers, 5,384 men, 1 trench mortar, and 21 machine guns. Along the Baligrod-Cisna road the fighting proceeded, up to March 30, by day and night. Gradually the Russians pushed toward Dvernik and Ustrzyki south of Lutoviska, threatening the Austrian position in the Uzsok and lines of communications to the south. German reserves were hurried up from the base at Ungvar, but could not prevent the capture of 80 Austrian officers, over 5,000 men, 14 machine guns, and 4 pieces of cannon. Ivanoff had been careful to hold his portion of Selivanoff's army in reserve; their presence turned the scale.