I just started reading a collection of some of Robert E.Howard's lesser known adventure stories, El Borak and Other Desert Adventure Tales. El Borak is the name the locals gave to the hero of the majority of the stories, Francis Xavier Gordon, a Texas gunslinger who finds himself in the wilds of Afghanistan.
So far, the stories are very good. I had always avoided Howard's 'lesser' works, assuming they weren't as good as the Conan or Solomon Kane stories, but his writing is actually very consistent in quality. I think a lot of his creations fell by the wayside since they were based on standard pulp tropes (explorers, sailors, boxers, cowboys, etc.) that are considered dated by today's standards, and not because they were poorly written.