What a fool he had been--the light had revealed his position! But at the same moment came the instinct to throw himself to one side; which he did as the rush came.

In that one flash he had seen--a man's white beard.
Next instant there was a sharp sting in his right shoulder.

The knife had missed his breast--the sudden swerving had saved him.

Even as it struck, he threw himself on his assailant.

Then came a struggle.