This week's comic book purchases: Astonishing X-Men #25 (where Warren Ellis replaces Joss Whedon as writer), Buffy the Vampire Slayer: Season Eight #16 (Buffy/Fray crossover!), Angel: After the Fall #10, Hellboy: The Crooked Man #1, Doctor Who #5, Doctor Who Classics #8, Trinity #5, Supergirl #31, Manhunter #32, Patsy Walker: Hellcat #1, Joker's Asylum: The Joker #1, Batman #678, Avengers/Invaders #3, Squadron Supreme #1, Chas: The Knowledge #1, Fables #74, House of Mystery #3, and The Walking Dead #50. I also picked up Fantastic Four #558 because I forgot to get it last week.