I liked the Anne Rice Mayfair witch series, but all I am seeing now are vampire series in the stores.  Does anybody know of an author who has written any adult fiction witchcraft books?  I can't believe Anne Rice is the only writer that has tapped into that subject.

Would appreciate any recommendations.

The Three Sisters Island trilogy by Nora Roberts is pretty good.  It includes Dance Upon the Air, Heaven and Earth, and Face the Fire.  Each book is about one of three sisters who have special powers.  Of course, being that it's Nora Roberts, there's a fair amount of romance thrown in too! 

M.R. Sellars has a mystery/thriller series featuring Rowan Gant, who is a Wiccan computer geek who ends up solving a bunch of horrible crimes. They can be rather violent, so definitely not a "fluffy bunny" type of series, and the author is also a real-life Wiccan, so these are not "paranormal" books per se--the lifestyle of the protagonists actually portray modern pagan life fairly accurately, at least parts of it.  So if you're expecting a paranormal series like others, this isn't it. The first book is called Harm None.

Cheryl

Cheyenne McCray has a series beginning with "Forbidden Magic" where the main characters are witches.  Of course there are all sorts of other paranormal beings like demons and Tuatha D'Danann.  Not sure it's what you're looking for, but she came to mind when you mentioned witches.