3/10 Andre would have given the twenty thousand francs which he still had in his pocket if he could have heard a single word of their conversation. He was moving skilfully forward so as to place himself within earshot, when not two feet from him he heard a shrill whistle twice repeated. There was something so strange and curious in the sound of this whistle that Andre looked round and noticed that the three men whom he was watching had been also attracted by it. The tall man with the colored glasses glanced suspiciously around him, and then after a nod to his companions turned and re-entered the office, while Verminet and the other walked away arm in arm. Andre was undecided; should he try and discover who these two men were? |