"Tom Clancy comes to mind. Also, what's her name? The one who writes thrillers for teenagers—V.S. Andrews ©?, who is dead but her name is copyrighted."

Also L. Frank Baum, the author of The wonderful wizard of OZ. Some suggest he wrote only the first two in the series and the rest were done by his nephew. After the 14 published under L. Frank Baum's name, Ruth Plumly Thompson took over in admirable fashion. Apparently the next guy was basically no good.

I think novels featuring Ellery Queen were written by several different authors, or maybe I'm thinking of someone else.