My Little Pony Friendship is Spooky TP IDW Publishing

As the weather cools and leaves start falling, it's spooky season in Ponyville!

Something terrifying is happening at Sweet Apple Acres. Bad apples have come alive and are determined to take over all of Ponyville in "Night of the Apples!" Then, the Ponies go on an adventure to a newly erupted geyser and after some fun playing in the water, they begin to act a bit strange, perhaps even... sinister, in "Ponies of Dark Water!"

Collects My Little Pony: Friendship is Magic issues #32–33 and #43–45 by writer Thom Zahler and artist Tony Fleecs.