Fog

From publisher blurb:

This series of ebooks explore the varied ways that a single spell can be adapted into new spells.

This second ebook in the series explores fog spells, offering a wide range of new spells of 1st to 6th level to expand the options for this popular type of spell. Within its pages are to be found the following:

20 Spells of the fog type.
9 new feats for lovers of fog effects.
A new feat that offers a way of making varied fog effects more accessible to wizards without them having to fill all their spell slots.

Spell Themes: Fog is spell sourcebook compatible with the Pathfinder Roleplaying Game and suitable for GMs and players of any level.