She saw a sharp dark look pass between the two.
Suddenly her sight swam, she swayed and would have fainted, but resolution steadied her, and a low exclamation broke from her lips.

Now she knew! The face that had eluded her was at last in the grasp of horrified memory.

It was the face of one who many years ago was known to have poisoned the Due de Chambly by anointing the pommel of his saddle with a delicate poison which the rider would touch, and touching would, perhaps, carry to his nostrils or mouth as he rode, and die upon the instant.

She herself had seen the Due de Chambly fall; had seen this man fly from Paris for his life; and had thereafter known of his return to favour at the court of Mary and Francis, for nothing could be proved against him.

The memory flashed like lightning through her brain.