"Listen," said he, motioning them to stoop.

The scratching became more and more audible; they could hear the little stones grate on a hard body and roll away.

"Some animal in his burrow," said John Mangles.

Glenarvan struck his forehead.

"Who knows?" said he, "it might be a man."

"Animal or man," answered the Major, "I will soon find out!"

Wilson and Olbinett joined their companions, and all united to dig through the wall--John with his dagger, the others with stones taken from the ground, or with their nails, while Mulrady, stretched along the ground, watched the native guard through a crevice of the matting.

These savages sitting motionless around the fire, suspected nothing of what was going on twenty feet off.

The soil was light and friable, and below lay a bed of silicious tufa; therefore, even without tools, the aperture deepened quickly. It soon became evident that a man, or men, clinging to the sides of the "pah," were cutting a passage into its exterior wall. What could be the object? Did they know of the existence of the prisoners, or was it some private enterprise that led to the undertaking?