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When Equestria is threatened with an invasion of all its greatest enemies, Celestia and Luna are forced to turn to the only ally with a chance of helping them: Humans. The only question left now is whether any of Equestria will be left to save.
31 Dislikes, 5,045 Views
(5 stars with 1 vote)

It's been a handful of years since Twilight came into her own as a Princess of Equestria, a few years spent in peace and harmony without so much as an angry spirit or clandestine invasion to take away from the tranquility of Equestrian life. Unprecedented developments in the technological and thaumaturgical sciences seem to be preparation for something, though nopony realizes what that something might be.

Nopony except the Princesses, who have not failed to see the signs of impending disaster that began with the mass kidnappings just following the Summer Sun Celebration. When all their preparations are turned upside down, can an alliance with the mysterious Precursors turn the tides of the most devastating war in Equestrian history, while there is still anything left to save? Enemies and allies appear in the most unlikely of places, and friendship with a dying elder race can be more dangerous than an invasion of Dragons and Changelings. What is a pony willing to give in defense of harmony? What are they willing to sacrifice?


This story now has a companion piece, The Sunset Campaign! This story is designed to bring Harmony Defended more into line with the three-story version of My Little Apprentice. If you read Apogee and Perihelion, you may want to read that as well!

This story was written prior to season five, and as such any events which transpire therein may or may not be treated as canonical. All events up to and including "Twilight's Kingdom" are treated as having occurred, however.

A huge thanks to my Alpha Readers! Thanks to these wonderful people, new chapters aren't nearly so riddled with mistakes and errors as they used to be. Thanks to Sparktail, TwoBit, Withered Pyre, and Zutcha. Zutcha of course deserves double the love, since he's also the artist of the cover and any other fantastic art that finds its way into the story.

Dubious
Complete
Adventure
Sci-Fi

204,414 words: Estimated 13 Hours, 38 Minutes to read: [Fimfiction.net] [Cache]

28 Chapters:

  1. Prologue: Drums [Fimfiction.net] [Cache] Aug 25th, 2014
    7,126
  2. Chapter 1: Bridge [Fimfiction.net] [Cache] Aug 25th, 2014
    6,168
  3. Chapter 2: Traditions [Fimfiction.net] [Cache] Aug 25th, 2014
    4,730
  4. Chapter 3: Audience [Fimfiction.net] [Cache] Jul 14th, 2014
    5,501
  5. Chapter 4: Free [Fimfiction.net] [Cache] Jul 14th, 2014
    6,984
  6. Chapter 5: Shots [Fimfiction.net] [Cache] Aug 25th, 2014
    5,566
  7. Chapter 6: Warfare [Fimfiction.net] [Cache] Jul 26th, 2014
    5,776
  8. Chapter 7: Rescue [Fimfiction.net] [Cache] Aug 25th, 2014
    5,535
  9. Chapter 8: Landfall [Fimfiction.net] [Cache] Aug 11th, 2014
    5,012
  10. Chapter 9: Eclipse [Fimfiction.net] [Cache] Aug 17th, 2014
    6,606
  11. Chapter 10: Meetings [Fimfiction.net] [Cache] Aug 25th, 2014
    6,790
  12. Chapter 11: Wings [Fimfiction.net] [Cache] Aug 30th, 2014
    7,340
  13. Chapter 12: Lies [Fimfiction.net] [Cache] Sep 13th, 2014
    5,687
  14. Chapter 13: Takeoff [Fimfiction.net] [Cache] Sep 13th, 2014
    6,465
  15. Chapter 14: Rainbow [Fimfiction.net] [Cache] Sep 20th, 2014
    8,526
  16. Chapter 15: Extraction [Fimfiction.net] [Cache] Oct 4th, 2014
    7,363
  17. Chapter 16: Induction [Fimfiction.net] [Cache] Oct 6th, 2014
    8,467
  18. Chapter 17: Virus [Fimfiction.net] [Cache] Oct 18th, 2014
    7,907
  19. Chapter 18: Avalon [Fimfiction.net] [Cache] Oct 18th, 2014
    8,455
  20. Chapter 19: Causality [Fimfiction.net] [Cache] Oct 26th, 2014
    7,834
  21. Chapter 20: Powers [Fimfiction.net] [Cache] Nov 2nd, 2014
    9,961
  22. Chapter 21: Lagrange [Fimfiction.net] [Cache] Nov 8th, 2014
    6,792
  23. Chapter 22: Alajuela [Fimfiction.net] [Cache] Nov 22nd, 2014
    8,092
  24. Chapter 23: Solstice [Fimfiction.net] [Cache] Nov 24th, 2014
    8,742
  25. Chapter 24: Truth [Fimfiction.net] [Cache] Dec 1st, 2014
    6,650
  26. Chapter 25: Earthrise [Fimfiction.net] [Cache] Dec 6th, 2014
    9,460
  27. Chapter 26: Father [Fimfiction.net] [Cache] Dec 13th, 2014
    8,542
  28. Epilogue [Fimfiction.net] [Cache] Dec 20th, 2014
    12,337
Published Jun 14th, 2014
Last Update Dec 20th, 2014

Other Titles in this Series:

  1. My Little Apprentice

    by Starscribe
    44 Dislikes, 15,447 Views

    When a remarkable spell summons a human mind into the body of a unicorn filly, Princess Twilight Sparkle does the only thing she can think of: Take on an apprentice.

    Young Adult
    Complete
    Slice of Life
    Sci-Fi

    17 Chapters, 101,382 words: Estimated 6 Hours, 46 Minutes to read: Cached
    Published Mar 4th, 2014
    Last Update May 14th, 2015
  2. Harmony Defended

    by Starscribe
    31 Dislikes, 5,045 Views

    When Equestria is threatened with an invasion of all its greatest enemies, Celestia and Luna are forced to turn to the only ally with a chance of helping them: Humans. The only question left now is whether any of Equestria will be left to save.

    Dubious
    Complete
    Adventure
    Sci-Fi

    28 Chapters, 204,414 words: Estimated 13 Hours, 38 Minutes to read: Cached
    Published Jun 14th, 2014
    Last Update Dec 20th, 2014
  3. My Little Apprentice: Apogee

    by Starscribe
    15 Dislikes, 4,398 Views

    Second Chance has her memories back, and now the responsibility of an entire civlization rests on her shoulders. Can she save her old world without betraying her new one?

    Teen
    Complete
    Adventure
    Sci-Fi

    13 Chapters, 95,356 words: Estimated 6 Hours, 22 Minutes to read: Cached
    Published Feb 16th, 2015
    Last Update May 9th, 2015
  4. Pax Humana

    by Starscribe
    9 Dislikes, 2,822 Views

    Ten years have passed since the awful war that nearly destroyed Equestria. Humanity and ponies now live together in harmony. Yet for Sweetie Belle, not all scars are so easily healed.

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