It’s free to download and well worth trying. The adventure is also free and quite easy to find, but I’ll delay linking so as not to tempt any of the players into doing something naughty enough to get the Inquisition involved.
Thanks for mentioning the Lawrence Ellsworth translation, I’ll keep an eye open that edition. A recommendation for other swashbuckling fiction set in the same historical era as the musketeers is Captain Alatriste by Arturo Perez-Reverte, with the focus on Spain rather than France.