Translations for complicated in French

Here are paragraphs from public domain books translated:

“Very complicated.”	— Très compliqué.
The Extraordinary Adventures of Arsene Lupin, Gentleman Burglar, by Maurice Leblanc	Arsène Lupin gentleman-cambrioleur, de Maurice Leblanc

“I think that I shall be in a position to make the situation rather more clear to you before long. It has been an exceedingly difficult and most complicated business. There are several points upon which we still want light—but it is coming, all the same.”	— Avant qu’il soit longtemps, j’espère avoir déblayé le terrain et rendu votre situation sensiblement plus claire. Tout cela est très difficile, très compliqué. Il existe encore quelques points sur lesquels la lumière est nécessaire… Mais elle est en marche, la lumière !
The Hound of the Baskervilles, by Arthur Conan Doyle	Le Chien des Baskerville, de Arthur Conan Doyle