in's face。
〃But why？ What more do you want？〃
〃The te's alibi is still unshaken。〃
〃But that is nonsense。〃
〃Yes；〃 said Poirot； 〃I rather think it is nonsense； but unfortunately we have to prove it so。〃
〃In the meantime he will slip through your fingers。〃
Poirot shook his head very energetically。
〃No；〃 he said； 〃he will not do that。 The one thing the te cannot afford to sacrifice is his social position。 At all costs he must stop and brazen it out。〃
Van Aldin was still dissatisfied。
〃But I don't see …〃
Poirot raised a hand。 〃Grant me a little moment； Monsieur。 Me； I have a little idea。 Many have mocked themselves at the little ideas of Hercule Poirot … and they have been wrong。〃
〃Well；〃 said Van Aldin； 〃go ahead。 What is this little idea？〃
Poirot paused for a moment and then he said：
〃I will call upon you at your hotel at eleven o'clock tomorrow morning。 Until then； say nothing to anyone。〃
Chapter 22
M。 PAPOPOULOS AT BREAKFAST
M。 Papopolous was at breakfast。 Opposite him sat his daughter； Zia。
There was a knock at the sitting…room door； and a chasseur entered with a card which he brought to Mr Papopolous。 The latter scrutinized it； raised his eyebrows； and passed it over to his daughter。
〃Ah！〃 said M。 Papopolous； scratching his left ear thoughtfully； 〃Hercule Poirot。 I wonder now。〃
Father and daughter looked at each other。
〃I saw him yesterda