Super Max the Mighty Invincible can see a haunted house from her bedroom window. Thornwood Manor is excellently creepy, and legends say the ghost of mean old Hargrove Thornwood is just biding his time until he can exact revenge on the town of Blue Creek.

Twelve-year-old Max tries not to worry about those spooky stories. She’s a whiz with electronics, she’s turbo-charged her wheelchair, and she’s ready for just about anything. Then a hacker starts a slanderous Facebook page about her grandfather. Max investigates even though she isn’t sure she has the skills to take the electronic bad guy down.

As the messages grow increasingly sinister, lights begin to flicker in the ruined manor. Someone—or some thing—is definitely stirring within Thornwood’s rotten walls. Max knows the attacks on her grandfather and the activity at Thornwood are connected, and she’s afraid that this could really be Thornwood’s Revenge.

If it is, the awful messages are just the beginning. Max’s grandfather, her friends, and her whole town could be in serious danger.