"Exactly where you are mistaken," said Balmayne, bitterly. "They all know it. Isidore let it out tonight. The fellow Prout, who has the Corner House case in hand, by a piece of amazing luck has arrested a criminal on another charge. In that criminal's possession were certain letters addressed to him by the--by Leona Lalage, in fact. In other words the police have discovered the dead man's brother Ren茅!"!