New Dumas novel (mostly) discovered

This old Guardian article from May 2008 talks with Claude Schopp, a Dumas scholar who turned up most of an unknown Dumas novel.

"Imagine that a previously unknown Dickens novel suddenly turned up after gathering dust for more than 130 years. The mere suggestion seems ridiculous. How could a book by one of Britain's best-known 19th-century writers possibly have slipped through the net for so long? Or even at all? Yet that is precisely what happened to Alexandre Dumas's final epic, Le Chevalier de Sainte-Hermine, which was published for the first time in France three years ago and is being published in English this week as The Last Cavalier."