Translations for mode in French

Here are paragraphs from public domain books translated:

"The devil take the madman!" murmured M. de Treville, "unless," added he, "this is a cunning mode of escaping, seeing that he had failed in his purpose!"	— Diable de fou ! murmura M. de Tréville. À moins toutefois, ajouta-t-il, que ce ne soit une manière adroite de s’esquiver, en voyant qu’il a manqué son coup !
The Three Musketeers, by Alexandre Dumas	Les Trois Mousquetaires, de Alexandre Dumas