“And during that time you think he concealed something by the roadside?” asked Van Aldin, keenly interested.
“By the roadside, no. Ça n’est pas pratique. But listen now—me, I have made a little suggestion to M. Carrège. He is graciously pleased to approve of it. In each Bureau de Poste in the neighbourhood it has been seen to that there is someone who knows the Comte de la Roche by sight. Because, you see, Messieurs, the best way of hiding a thing is by sending it away by the post.”
“Well?” demanded Van Aldin; his face was keenly alight with interest and expectation.
“Well— voilà! ” With a dramatic flourish Poirot drew out from his pocket a loosely wrapped brown paper package from which the string had been removed.
“During that quarter of an hour’s interval, our good gentleman mailed this.”
“The address?” asked the other sharply.
Poirot nodded his head.
“Might have told us something, but unfortunately it does not. The package was addressed to one of these little newspaper shops in Paris where letters and parcels are kept until called for on payment of a small commission.”
“Yes, but what is inside?” demanded Van Aldin impatiently.
Poirot unwrapped the brown paper and disclosed a square cardboard box. He looked round him.
“It is a good moment,” he said quietly. “All eyes are on the tennis. Look, Monsieur!”