〃The jewels were never recovered;〃 said Knighton drily。
〃You really do believe in him?〃
〃I do indeed。 The te de la Roche is a pretty wily customer。 He has wriggled out of most things。 But I think he has met his match in Hercule Poirot。〃
〃The te de la Roche;〃 said Katherine thoughtfully; 〃so you really think he did it?〃
〃Of course。〃 Knighton looked at her in astonishment。 〃Dont you?〃
〃Oh yes;〃 said Katherine hastily; 〃that is; I mean; if it was not just an ordinary train robbery。〃
〃It might be; of course;〃 agreed the other; 〃but it seems to me that the te de la Roche fits into this business particularly well。〃
〃And yet he has an alibi。〃
〃Oh; alibis!〃 Knighton laughed; his face broke into his attractive boyish smile。
〃You confess that you read detective stories; Miss Grey。 You must know that anyone who has a perfect alibi is always open to grave suspicion。〃
〃Do you think that real life is like that?〃 asked Katherine; smiling。
〃Why not? Fiction is founded on fact。〃
〃But is rather superior to it;〃 suggested Katherine。
〃Perhaps。 Anyway; if I was a criminal I should not like to have Hercule Poirot on my track。〃
〃No more should I;〃 said Katherine; and laughed。
They were met on arrival by Poirot。 As the day was warm he was attired in a white duck suit; with a white camellia in his buttonhole。
〃Bonjour; Mademoiselle;〃 said Poirot。 〃I look very English; do I not?〃
〃You look wonderful;〃 said Katherine tactfully。
〃You mock yourself at me;〃 said Poirot genially; 〃but no matter。 Papa Poirot; he always laughs the last。〃
〃Where is Mr Van Aldin?〃 asked Knighton。
〃He will meet us at our seats。 To tell you the truth; my friend; he is not too well pleased with me。 Oh; those Americans … the repose; the calm; they know it not! Mr Van Aldin; he would that I fly myself in the pursuit of criminals through all the byways of Nice。〃
〃I should have thought myself that it would not have been a bad plan;〃 observed Knighton。
〃You are wrong;〃 said Poirot; 〃in these matters one needs not energy but finesse。 At the tennis one meets everyone。 That is so important。 Ah; there is Mr Kettering。〃
Derek came abruptly up to them。 He looked reckless and angry; as though something had arisen to upset him。 He and Knighton greeted each other with some frigidity。
Poirot alone seemed unconscious of a sense of strain; and chatted pleasantly in a laudable attempt to put everyone at their ease。 He paid little pliments。
〃It is amazing; M。 Kettering; how well you speak the French;〃 he observed … 〃so well that you could be taken for a Frenchman if you chose。 That is a very rare acplishment among Englishmen。〃
〃I wish I did;〃 said Katherine。 〃I am only too well aware that my French is of a painfully British order。〃
They reached their seats and sat down; and almost immediately Knighton perceived his employer signalling to him from the other end of the court; and went off to speak to him。
〃Me; I approve of that young man;〃 said Poirot; sending a beaming smile after the departing secretary; 〃and you; Mademoiselle?〃
〃I like him very much。〃
〃And you; M。 Kettering?〃
Some quick rejoinder was springing to Dereks lips; but he checked it as though something in the little Belgians twinkling eyes had made him suddenly alert。 He spoke carefully; choosing his words。