Frostburn: Mastering the Perils of Ice and Snow (Dungeons & Dragons d20 3.5 Fantasy Roleplaying Supplement) / Wolfgang Baur, James Jacobs, George Strayton

A complete guide to playing D&D in the ice and snow.
This 4-color supplement begins a new series of releases that focus on how the environment can affect D&D gameplay in every capacity. Frostburn contains rules on how to adapt to hazardous cold-weather conditions, such as navigating terrain with snow and ice and surviving in bitter cold or harsh weather. There are expanded rules for environmental hazards and manipulation of cold weather elements, as well as new spells, feats, magic items, and prestige classes. New monsters associated with icy realms are included, as well as variants on current monsters. There is enough adventure material included for months of gameplay.