Of Fire and Stone is a book in The Witcher 3: Wild Hunt. When read, which adds bestiary entries for earth, fire, ice elementals, and hounds of the Wild Hunt, as well as the formula for earth elemental decoction.
It should be available as random loot in both the base game and the Blood and Wine expansion, but due to a randomization bug it only appears as such on bookshelves in houses around Toussaint, and can only be purchased from the Ducal Camerlengo in Beauclair. Thus, it is rather useless as none of the above-mentioned monsters can be encountered in Toussaint.
Journal entry[]
- Sphera Mundi is divided into four Elemental Planes: the Plane of Earth, the Plane of Water, the Plane of Air and the Plane of Fire. Earth and Water together form our Planet, around which circulates Air. Above Air stretches the Aether - Fiery Air, or in short, Fire. Past Fire lie the Subtle Sidereal Heavens known collectively as Firmamentum, which are of a spherical nature. That is where the Erratica Sydera, drifting stars, and Fixa Sydera, fixed stars, reside.
- The Elemental Planes are inhabited by creatures which can be summoned by use of magic. They are: gnomes, sylphs, salamanders, and ondynates, all of which belong to the category commonly known as elementa ("elementum" in the singular).