This is premature (the book won't be published until next year) but I was asked to give a cover quote for A Shadow All of Light, by Fred Chappell, former Poet Laureate of North Carolina and World Fantasy Award winner.  I think it should appeal to Vanceans.

My blurb: 

If Bill Shakespeare and Jack Vance got together to write a fantasy novel about a young man training to be a stealer of shadows, A Shadow All of Light might well be the result.  This is high-concept fantasy, magnificently executed, with many a deftly turned phrase to linger over and recall at leisure.