A dreadful silence fell, and then Lady Devine, stretching out her hands towards the self-confessed murderer, with a sort of frightful respect, said in a whisper, in which horror and supplication were strangely mingled, “What did you do with my son? Did you kill him also?”

But John Rex, wagging his head from side to side, like a beast in the shambles that has received a mortal stroke, made no reply. Sarah Purfoy, awed as she was by the dramatic force of the situation, nevertheless remembered that Francis Wade might arrive at any moment, and saw her last opportunity for safety. She advanced and touched the mother on the shoulder.

“Your son is alive!”

“Where?”

“Will you promise not to hinder us leaving this house if I tell you?”

“Yes, yes.”

“Will you promise to keep the confession which you have heard secret, until we have left England?”

“I promise anything. In God's name, woman, if you have a woman's heart, speak! Where is my son?”

Sarah Purfoy rose over the enemy who had defeated her, and said in level, deliberate accents, “They call him Rufus Dawes. He is a convict at Norfolk Island, transported for life for the murder which you have heard my husband confess to having committed—Ah!——”

Lady Devine had fainted.