The Haunted Mask (goosebumps: The Graphic Novel) - R L Stine

Now in graphic novel format—prepare to be scared like never before! You have been warned. Carly Beth needs the perfect Halloween mask. One that will scare everyone she comes across—including her annoying little brother and the bullies from her school. A visit to a strange costume store provides just the right one. An ugly green one with fierce fangs, the mask makes Carly Beth feel powerful and scary. But when the mask won’t come off, will the monster take over?