>I want to say he had a "ghost writer" writing for him towards the end

Absolutely. I think Clancy sold his name for a lot of money and later books were written by others.

Indiana Jones is a cool concept. The character was based on 1930s 40s "Men's Adventure" characters, e.g. Allan Quatermain. Exploring exotic locations, battling villains, and seeking ancient treasures. Of course Hebrewood made the villains in Indiana nahtzees. But if you can look past that they're cool adventure tales.