"So Mr. Van Aldin remains in London?"
"Yes."
"I must try to see him to-morrow or the next day."
"You have news for him?"
"What makes you think that?"
"I—wondered, that is all."
Poirot looked across at her with twinkling eyes.
"And now, Mademoiselle, there is much that you wish to ask me, I can see that. And why not? Is not the affair of the Blue Train our own 'Roman Policier'?"
"Yes, there are things I should like to ask you."
"Eh bien?"