The Lost Slayer is an example of the dozens of novels taking place in the fictional Buffyverse. In this story, Buffy enters an alternate reality that makes her life seem sugar-coated.
It is 1940 and for Drusilla's vampiric birthday, Spike decides he will acquire Freyja's Strand, a necklace that has the ability to allow Drusilla to view her reflection.
Buffy visits her Dad in L.A. whilst the others continue the good fight.
Buffy season 2
The Suicide King, Keep Me In Mind, Colony, and Night Terrors form a series of gamebooks, titled Stake Your Destiny. Each novel contains many numbered sections. Instead of reading the book from start-to-finish, the reader is given a choice at the end of each section. Depending upon the reader's decision, the reader will be directed to another numbered section that might be anywhere in the book. Unlike some other gamebooks, Stake Your Destiny novels do not contain any form of game system.
These tales take place during Buffy season 2 (from autumn 1997 until spring 1998).
Faith has a tough time growing up in South Boston, moving from relative to relative when Diana Dormer arrives and informs Faith that she is a potential slayer.
Buffy is having a hard time dealing with Angelus and her grades and so Snyder forces her to get tutoring which takes time away from her slaying, just when things couldn't get worse Dru wants a child and sires a little girl who starts to become too much to handle. Buffy's new love interest makes Angelus jealous and a sleep-deprivation spell aimed at Snyder affects the whole Sunnydale community.
Buffy season 3
These tales take place during Buffy season 3 (from autumn 1998 until spring 1999).
Four Druids arrive in town. They're in town to try a spell on a certain night to close the gateway in the Hellmouth so that demons would not be allowed to pass through.
The Lost Slayer series. Buffy, new to UC Sunnydale faces a group of vampires with bats tattooed across their faces who will have huge and not-so-appealing consequences for the Scooby Gang's future. Sunnydale, 1999.
Unseen trilogy. Buffy and Angel have to work together to solve disappearances of teenagers and calm down the gang warfare going on in LA. Sunnydale, Los Angeles, 2000. Crossover book series with Angel.
Buffy season 5/Angel season 2
These Buffyverse tales take place during Buffy season 5 and Angel season 2 (from autumn 2000 until spring 2001).
An organised, united effort is being made to put Spike out of the picture. Angel and Spike reluctantly work together and deal with their shared evil pasts. Crossover book with Angel.
Willow is terrified that using her magic powers might result in dark magic consuming her whilst the Angel Michael brings signs of apocalypse to Sunnydale.
Buffy is being sent on random missions by a man that goes by the name of Simon. He wants her to retrieve parts of a mystical sword and put them together, but he refuses to say why or who he even is.
Buffy season 8 /Angel season 5
These Buffyverse tales take place after Buffy season 7 and after Angel season 4.
Until 500 years ago all of the demonic and monstrous races met at a Dark Congress. They prepare to meet again.
Canonical issues
Buffy novels are not usually considered part of Buffyverse canon by fans. However, unlike fan fiction, overviews summarizing the basic story of each novel (written early in the writing process) were approved by both Fox and Joss Whedon (or his office), thereby allowing the books to be published as official Buffy/Angel merchandise.
Novels by writer
For a list associating Buffyverse authors with their Buffyverse novels see here. List of authors who have written Buffy novels: