"Mr. Grell shall tell you that in his own fashion," she said. "Listen."
For ten minutes she talked rapidly, now and again writing something on a slip of paper and showing it to Eileen. The girl nodded in comprehension, occasionally interjecting a question. At last the Princess rose.
"You fully understand?" she said.
"I fully understand," echoed Eileen.
CHAPTER XX
Heldon Foyle had been prepared to take any risk rather than allow the Princess Petrovska to escape him again. There was nothing against her but suspicion. It was for him to find evidence that might link her with the crime. It is in such things that the detective of actuality differs from the detective of fiction. The detective of fiction acts on moral certainties which would get the detective of real life into bad trouble. To arrest the Princess was out of the question; even to detain her might make matters awkward. Yet the superintendent had made up his mind to afford Wills the butler a sight of her at all costs. If Wills identified her it would be at least another link in the chain of evidence that was being forged.
He carried the butler in a taxicab with him to the nearest corner to the Duke of Burghley's house. A well-groomed man sauntered up to them and shook hands warmly with Foyle.
"She has not come out yet," he said.