Title: Invasion of the Appleheads (Deadtime Stories #2)
First published: 1996
Description: Katie and Andy Lawrence thought moving to a new town—especially one named Appleton—was awful enough. They were wrong. When their parents take them to Appleton's famous apple orchard for a haunted hayride, weird things start happening.

The ghouls who haunt the orchard seem spookily real. The kids they see are acting very strangely, like robots or…zombies. Then Mr. and Mrs. Lawrence disappear—and in their place, Katie and Andy find creepy shrunken applehead dolls! 
Now Katie and Andy have to find a way to turn their parents back to normal—before it's too late
Subjects: Fiction, Horror stories, Halloween, Witches
LC classification: PZ7.C2667 In 1996