Babel Clash

It’s rare for a popular fantasy or sf novel to stand alone.  Sequels and series follow, and that’s a good thing.

A few writers produce brilliant fantasy or sf stories and choose not to write sequels.  So, here’s my question.  For what standalone novel do you most wish the writer would create a sequel?

Here are a few of my picks:   1) Neverwhere by Neil Gaiman.  2) Weaveworld by Clive Barker.  3 ) The Princess Bride by William Goldman.  4)Brandon’s Elantris.