From publisher blurb: Don’t Explore Swamps Unprepared! 101 Swamp Spells enhances the range of spellcasting options for players and gives GMs exciting new ways to challenge the marsh-exploring adventurers in their campaigns. Want to really take advantage of those slow-rolling banks of fog on the edges of the swamp? Any interest in changing what natural toxins do? Want more ways to enjoy creatures from will-o-wisps and stirges to oozes and jellies?