The Ponies go on an adventure to a newly erupted geyser. After some fun playing in the water, the ponies begin to act a bit strange, perhaps even... sinister, in "Ponies of Dark Water." Plus, it's election season in Ponyville and Mayor Mare looks to have the race in the bag. But when Filthy Rich throws his hat in the ring, all bets are off! Collects issues #43–47.