"Yes, I am Sonia Daviloff. What is it you want to know?"
"I am making some inquiries about that sad affair the night before last—the death of M. Gilmour Wilson. What can you tell me about it?"
The girl's eyes opened wide.
"He died of heart failure—as he was playing chess."
"The police are not so sure that it was—heart failure, mademoiselle."
The girl gave a terrified gesture.
"It was true then," she cried. "Ivan was right."
"Who is Ivan, and why do you say he was right?"
"It was Ivan who opened the door to you—and he has already said to me that in his opinion Gilmour Wilson did not die a natural death—that he was poisoned by mistake."
"By mistake."