“Who, then, are you?” asked the Captain, in surprise.

“You know me, surely?” she answered, with a harsh, strained laugh.

At that moment I heard voices behind me, and, turning quickly, saw three police officers in uniform at the door.

“There she is!” cried one. “I recognise her.”

“Yes; let us enter.”

Brushing past me, the men unceremoniously burst into the room.

“What means this intrusion?” demanded Matvyèich fiercely.

The men saluted, but before they could explain a grey-headed man in ordinary dress pushed forward, and, walking up to my “sister,” exclaimed—

“Sophie Zagarovna! I arrest you for murder, by order of our Imperial Master, the Tzar!”