Volume Four of the Buffy the Vampire Slayer Omnibus series concludes Buffy's high school career, wrapping up Season Three of the show's storyline. Collected in this volume are: Buffy issues #9-11, 13-15, 17-120, Buffy the Vampire Slayer: Bad Dog, Buffy the Vampire Slayer: Spike and Dru, Who Made Who, Buffy the Vampire Slayer/Angel: The Hollower. The complete "Bad Blood," saga written by Andi Watson (Clubbing), the first attempt at making a "season" of the comics, where Buffy battles a sultry vampire who hungers for a lot more than blood.