"Seems to me as the skunk's got right away," said Larry, his patience nearly exhausted when they had lain there nearly half an hour and not a sound had reached their ears, save those made by their distant friends who were patrolling the main gallery, "suppose——"

Dan gripped him by the shoulder.

"H—h—ush!" he whispered.

Jim pushed his torch forward and made ready.

"Aye!" grunted Larry, and then there was a faint click as he prepared his revolver.

"Wait!" Someone was coming toward them. A sound of stealthy footsteps reached their ears, though whether coming from the left or the right was at that moment uncertain. Peering in both directions, the three lay there with bated breath, endeavouring to remain cool and yet almost trembling with suppressed excitement. Then, of a sudden, the sound of a splash only a few yards away arrested their attention, and caused them to start to their knees. An instant later their two torches cast beams into the gallery, and centred themselves with a flash upon an individual creeping along some twenty yards from them. It was the German without a doubt, hatless, dishevelled, sopping wet, and bearing a haunted, hunted expression. He blinked as the light fell full in his face, and then snatched at a weapon which he held concealed in a pocket. At the same moment Larry's pistol spoke, and with a howl the man dropped his left arm helpless beside him. But a moment later a flame flashed from beneath his coat, and one of the three fell with a dull thud on to the wet ground which floored the tunnel, his fall pushing Larry aside and upsetting his aim so that his second bullet went wide of the mark. A moment later the man was gone, and could be heard scuttling along into the distance.

ONE OF THE THREE FELL WITH A DULL THUD

"Show a light," said Jim hoarsely, as he bent over Dan's prostrate figure; "where's he hit, Larry? Ah!—look!"