The story revolves around Princess Twilight and her friends trying to save the Tree of Harmony, which is the source of Equestria's magic. They face obstacles and challenges, including Discord, a villain who has taken over the land. The group discovers that the Tree of Harmony's magic can be restored by giving it the Elements of Harmony, but they also learn that their friendship is the true key to their strength.
Meanwhile, Princess Celestia and Princess Luna are absent, and the group is trying to figure out why. They eventually discover that the two princesses were taken by Discord thousands of years ago, but the Tree of Harmony's magic prevented him from growing strong.
In the end, the group is able to defeat Discord and restore the Tree of Harmony's magic. The story concludes with the return of Princess Luna and a celebration of the summer sun's rise, symbolizing the return of the night and the moon. The story emphasizes the importance of friendship and teamwork in overcoming challenges.
Here are the key facts extracted from the text:
1. The Tree of Harmony is in danger.
2. The Celestial Princess and Princess Luna found the Elements of Harmony at the Tree of Harmony.
3. The Elements of Harmony are needed to defeat Discord and save the Tree of Harmony.
4. The Tree of Harmony possesses powerful magic that can control and contain everything that grows in Equestria.
5. The magic of the Tree of Harmony can survive even without the Elements of Harmony.
6. The Tree of Harmony is located in the Ever Forest.
7. Discord has been released from his stone prison.
8. The Elements of Harmony are the key to turning Discord back into stone.
9. Princess Celestia and Princess Luna are not present in Equestria.
10. Twilight Sparkle has returned to Equestria to help save the Tree of Harmony.
11. The seeds that Discord planted centuries ago have germinated and grown.
12. The Tree of Harmony had enough magic to prevent Discord's seeds from growing big and strong until now.
13. Princess Luna has been rescued and returns to Equestria.
14. The summer sun rising represents the return of Princess Luna.