Goosebumps The Scarecrow Walks At Midnight Book 16

Jodie loves visiting her grandparents' farm. Grandpa tells great scary stories and grandma's chocolate chip pancakes are the best, but this summer, the farm has really changed. The cornfields are sparse. Grandma and grandpa seem worn out and the single scarecrow has been replaced by the twelve evil-looking ones. One night Jodie sees something really odd. The scarecrows seems to be moving, twitching on their stakes, coming alive.