Here is the full list of all 12 Wailing Heights achievements.
Zombie talk at the water fountain.
Found the book, lost your body.
You have successfully completed the tutorial.
You exchanged all the ball talk.
Good hunting. You found all extras in the game.
You found all the limericks!
You're a mean vampire
We are Deadbeats!
Encore!
Ordered everything from the Zombie Shop.
Why can't I understand this zombie?
Exhausted your interrogation techniques.