X-Men: Pixie Strikes Back (2010) #2

Written by KATHRYN IMMONEN Penciled by SARA PICHELLI Cover by STUART IMMONEN

X-23, Armor, Blindfold, Mercury and Pixie are stuck in a nightmare high school and they can't get out. Who is the person responsible? Could it be Pixie's father? And who is he? Here's one hint-Hellfire.