My Little Pony: Friendship is Magic - Season 1 Episode 24 -

Spike meets an owl Twilight befriends to help her with their work. He soon begins to feel threatened over the possibility that it will take his spot as the unicorn's trusted assistant. Driven by jealousy, how far will the baby dragon go to make sure it doesn't happen? His friendship with Twilight is at further risk when he hides the fact that he recently destroyed one of her books by accident.