(W) Joss Whedon (A/CA) John Cassaday. Written by JOSS WHEDON Penciled by JOHN CASSADAY Cover by JOHN CASSADAY The chart-topping super-team of Joss Whedon (Marvel Studios' The Avengers* RUNAWAYS) and John Cassaday (Planetary* CAPTAIN AMERICA) return! Things go from peculiar to just plain bizarre as Emma Frost's erratic?behavior sends the X-Men into a non-stop downward spiral* and the new Hellfire Club makes its move! Plus: the X-Man destined to destroy the Breakworld stands revealed! Who is it? And will the X-Men be able to protect Earth from certain destruction at the hands of the Breakworld? When it's all over* nothing will ever be the same! No* really* we mean it! Whedon and Cassaday's complete saga acclaimed as "Series of the Year" by Wizard magazine and a "Must Have Gift" by TV Guide is collected across two softcover volumes. Collecting ASTONISHING X-MEN (2004) #13-24 and GIANT-SIZE ASTONISHING X-MEN #1.