The Book of Fours
The Book of Fours is an original novel based on the American television series "Buffy the Vampire Slayer". Plot summary. Taking place during "Buffy"'s third season, Faith and Buffy are the current Slayers. When mayhem caused by tidal waves and burning forests begin to erupt in Sunnydale as well as vicious attackers appearing with ceremonial axes, the gang knows that something is up. A woman named Cecile Lafitte has sent her Servants to kill the Slayers with special axes, Faith being the Slayer of Fire and Buffy being the Slayer of Air. Each Slayer has  a special axe made to destroy the Slayer of that particular element. There are four axes in total; air, fire, water and earth. Should Faith and Buffy both be killed then it's believed that the line of Slayers would die out forever. Cecile wants to bring forth the Gatherer, and the only way to do so is to have the Slayers killed, which would feed the demon enough power to bring him forth into the world. Meanwhile, Willow ends up in the hospital with major brain trauma while Giles figures they need answers from the Watcher of the Slayer  that preceded Buffy, India Cohen. During the final confrontation with the Gatherer, Willow and Cordelia briefly serve as hosts for India (the Slayer of Water) and Kendra (the Slayer of Earth) respectively. Eventually with the help of the spirits of the former Slayers, Lucy Hanover and the spirits that live in the woods where the battle takes place, the group defeats the Gatherer and destroys it by each absorbing parts of its soul. Buffy also decapitates Cecile with the axes. Canonical issues. Buffy novels such as this one are not usually considered by fans as canonical. However, unlike fan fiction , overviews summarizing their story, written early in the writing process, were 'approved' by both Fox and Joss Whedon (or his office), and the books were therefore later published as officially Buffy merchandise.