"I have not yet formed one. It is a bit of a riddle there, for the crow and the eagle do not fly together." "Well, follow him to America." "Thanks. The pay is good and the work is congenial." The tone of the little man was softly given to irony. Gray-haired, rosy-cheeked, a face smooth as a boy's, twinkling eyes behind spectacles, he was one of the most astute, learned, and patient of the French secret police. And he did not care the flip of his strong brown fingers for the methods of Vidocq or Lecoq. His only disguise was that not one of the criminal police of the world knew him or had ever heard of him; and save his chief and three ministers of war--for French cabinets are given to change--his own immediate friends knew him as a butterfly hunter, a searcher for beetles and scarabs, who, indeed, was one of the first authorities in France on the subjects: Anatole Ferraud, who went about, hither and thither, with a little red button in his buttonhole and a tongue facile in a dozen languages. "Very well, monsieur. I trust that in the near future I may bring you good news." "He will become nothing or the most desperate man in Europe." "Admitted." "He is a scholar, too." "All the more interesting." "As a student in Munich he has fought his three duels. He has been a war correspondent under fire. He is a great fencer, a fine shot, a daring rider." "And penniless. What a country they have over there beyond the Rhine! He would never have troubled his head about it, had they not harried him. To stir up France, to wound her if possible! He will be a man of great courage and resource," said the secret agent, drawing the palms of his hands together. "In the end, then, Germany will offer him money?" "That is the possible outlook." "But, suppose he went to work on his own responsibility?" "In that case one would be justified in locking him up as a madman. Do you know anything about Alpine butterflies?" "Very little," confessed the minister. "There is often great danger in getting at them; but the pleasure is commensurate." "Are there not rare butterflies in the Amazonian swamps?" cynically. "Ah, but this man has good blood in him; and if he flies at all he will fly high. Think of this man fifty years ago; what a possibility he would have been! But it is out of fashion to-day. Well, monsieur, I must be off. There is an old manuscript at the Bibliotheque I wish to inspect." "Concerning this matter?" "Butterflies," softly; "or, I should say, chrysalides." The subtle inference passed by the minister. There were many other things to-ing and fro-ing in the busy corridors of his brain. "I shall hear from you frequently?" "As often as the situation requires. By the way, I have an idea. When I cable you the word butterfly, prepare yourself accordingly. It will mean that the bomb is ready."