THE DUEL OF DR. HIRSCH
always one flash when the foolish mask fell, and the wise mask fitted itself in its place; and Flambeau, who knew his friend, knew that his friend had suddenly understood. Brown said nothing, but finished his plate of fish.
"Where did you last see our precious Colonel?" asked Flambeau, irritably.
"He's round at the Hotel Saint Louis by the Elysée, where we drove with him. He's packing up, I tell you."
"Will he be there still, do you think?" asked Flambeau, frowning at the table.
"I don't think he can get away yet," replied the Duke; "he's packing to go a long journey . . ."
"No," said Father Brown, quite simply, but suddenly standing up, "for a very short journey. For one of the shortest, in fact. But we may still be in time to catch him if we go there in a motor-cab."
Nothing more could be got out of him until the cab swept round the corner by the Hotel Saint Louis, where they got out, and he led the party up a side lane already in deep shadow with the growing dusk. Once when the Duke impatiently asked whether Hirsch was guilty of treason or not, he answered rather absently, "No; only of ambition—like Cæsar." Then he somewhat inconsequently added, "He lives a very lonely life; he has had to do everything for himself."
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