In it there was sand, and the, sand was beaten by footprints! He wormed his way through, and a moment later stood at the edge of the chasm.

Fifty feet above him a natural bridge of rock spanned the huge cleft through which the stream was rushing.

He crossed this, exposing himself openly to a shot if it was guarded.

But it was not guarded.

This fact convinced him that MacDonald had been killed, and that his enemies believed he was dead.