William was silent and thoughtful for a few moments.

“It all sounds very nice and plausible,” he said, “but there’s just one thing wrong. I’m not a very clever sort of bird, but I can see where your story slips up. If what you say is true, where is Anastatia?”

“Just coming in now,” whispered Jane. “Hist!”

“Hist, Reggie!” whispered Mr. Delancey.

They listened. Yes, the front door had banged, and feet were ascending the staircase.

“Hide!” said Jane, urgently.

“Why?” said William.

“So that you can overhear what they say and jump out and confront them.”

“Sound,” said Mr. Delancey.

“Very sound,” said Mr. Brown.