In Every GenerationIn Every Generation

"Follow the next generation of Scoobies and Slayers who must defeat a powerful new evil"--
A sophomore at New Sunnydale High School, Frankie Rosenberg is the daughter of the most powerful witch in Sunnydale history. Her mom, Willow, is slowly teaching her magic on the condition that she use it to better the world. Then new girl Hailey shows up with news that the annual Slayer convention has been the target of an attack, and all the Slayers-- including Buffy, Faith, and Hailey's older sister Vi-- might be dead. Being the first-ever Slayer-Witch means learning how to wield a stake while trying to control her budding powers. With the help of Hailey, a werewolf named Jake, and a hot but nerdy sage demon, Frankie must become the Slayer, prevent the Hellmouth from opening again, and find out what happened to her Aunt Buffy, before she is next. -- adapted from Goodreads info