Princess Twilight is looking for new books for her castle, when news of an unknown vessel is approaching Manehattan Harbor. When its top hatch opens, lots of ponies are seen exiting the bowels of the ship. Strangely, the ones that actually own it are bipedal apes, the leader of which Celestia knows all too well and vice versa. So what's going on? Why are they here? How does this make sense without Discord or Pinkie breaking the laws of physics?
Find out in The Other Kingdom.