From the Publisher's Web site:
Arthaus Publishing, Inc. and Wizards of the Coast, Inc. previously announced that they reached an agreement for the reversion of rights to the RAVENLOFT campaign setting. Wizards of the Coast has tentatively agreed to allow White Wolf, which solicits and sells all Arthaus products, to continue to sell back stock of Ravenloft books under its Sword & Sorcery umbrella brand through June of 2006.
This reversion means that the RAVENLOFT supplement Van Richten's Guide to the Mists will not see print. Sword & Sorcery Studios decided to release the unproofed manuscript (by authors Carla Hollar and Rucht Lilavivat and developers Jackie Cassada and Nicky Rea). Now this manuscript is available to you as a free download (ebook).
Arthaus Publishing licensed the rights to RAVENLOFT, the gothic horror brand of DUNGEONS & DRAGONS®, in 2001 and—under the Sword & Sorcery banner—has released 19 different products in the line over the last four years. Van Richten's Guide to the Mists was to be the twentieth product in the line.