Starlight Glimmer's attempts to stop the Rainboom pulled Twilight Sparkle into many possible timestreams.
In one, Rarity and Rainbow Dash survived Nightmare Moon's victory over the forces of light, eventually attaining positions of prominence and comfort in the Nightmare's service. But when the unexpected visit of an Alicorn and Dragon sheds light on a growing conspiracy against the wicked mistress of the night, Rarity and Rainbow Dash may yet be inspired to risk what they have gained to join the fight for a better world.
Yet darkness lingers even in the hearts of some who would oppose the Nightmare, and not all agree on what a better world would look like...
This story would not have been possible without the indescribably vast help and unwavering support of Moosetasm, the pre-reading assistance of I-A-M and Waxworks, as well as the editing prowess of OnionPie and Pascoite! Cover by Novel Idea, using Rarity by miracle32 and background by Drakizora! Featured on Equestria Daily 17Jul.2016! 
Featured on FimFiction 2Feb.2017 and many times thereafter! 
40 Chapters:
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Book 1: Hell Awaits [Fimfiction.net] [Cache]
Oct 31st, 2018
232
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Chapter 1: Dark Visitations [Fimfiction.net] [Cache]
Oct 31st, 2018
1,663
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Chapter 2: The Letter [Fimfiction.net] [Cache]
Nov 1st, 2018
2,130
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Chapter 3: Keys to the Kingdom [Fimfiction.net] [Cache]
Nov 2nd, 2018
1,617
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Chapter 4: Regent of the Sun [Fimfiction.net] [Cache]
Nov 3rd, 2018
1,749
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Chapter 5: That Which Remains [Fimfiction.net] [Cache]
Nov 7th, 2018
1,755
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Chapter 6: Marked for Death [Fimfiction.net] [Cache]
Nov 5th, 2018
1,558
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Chapter 7: To Canterlot [Fimfiction.net] [Cache]
Nov 7th, 2018
1,329
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Chapter 8: Kill the Pain [Fimfiction.net] [Cache]
Nov 8th, 2018
1,585
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Chapter 9: Cast in Stone [Fimfiction.net] [Cache]
Nov 8th, 2018
2,258
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Chapter 10: A Pointed Question [Fimfiction.net] [Cache]
Nov 9th, 2018
2,412
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Chapter 11: Cold Comfort [Fimfiction.net] [Cache]
Nov 10th, 2018
1,641
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Chapter 12: The Candy Maker [Fimfiction.net] [Cache]
Nov 12th, 2018
2,045
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Book 2: By the Pale Moonlight [Fimfiction.net] [Cache]
Nov 12th, 2018
429
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Chapter 13: The Dead Mare [Fimfiction.net] [Cache]
Nov 12th, 2018
3,334
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Chapter 14: Loyalties [Fimfiction.net] [Cache]
Nov 13th, 2018
1,993
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Chapter 15: Loose Threads [Fimfiction.net] [Cache]
Nov 14th, 2018
3,367
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Chapter 16: Evasion [Fimfiction.net] [Cache]
Nov 15th, 2018
2,388
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Chapter 17: Night Terrors [Fimfiction.net] [Cache]
Nov 26th, 2018
2,622
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Chapter 18: Good News, Bad News [Fimfiction.net] [Cache]
Nov 17th, 2018
2,757
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Chapter 19: Even Worse [Fimfiction.net] [Cache]
Nov 26th, 2018
4,288
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Book 3: No Dreams May Come [Fimfiction.net] [Cache]
Nov 26th, 2018
380
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Chapter 20: Obsession [Fimfiction.net] [Cache]
Nov 26th, 2018
1,582
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Chapter 21: Off the Deep End [Fimfiction.net] [Cache]
Nov 27th, 2018
3,461
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Chapter 22: Undeterred [Fimfiction.net] [Cache]
Nov 28th, 2018
1,492
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Chapter 23: Fire in the Night [Fimfiction.net] [Cache]
Nov 29th, 2018
2,419
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Chapter 24: Taken by Force [Fimfiction.net] [Cache]
Nov 30th, 2018
2,205
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Chapter 25: Tortured Logic [Fimfiction.net] [Cache]
Dec 1st, 2018
3,082
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Chapter 26: Hell Bent [Fimfiction.net] [Cache]
Dec 3rd, 2018
3,821
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Chapter 27: Severed [Fimfiction.net] [Cache]
Dec 3rd, 2018
4,274
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Chapter 28: A Foretaste [Fimfiction.net] [Cache]
Feb 25th, 2021
1,407
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Book 4: The Price [Fimfiction.net] [Cache]
Jan 23rd, 2019
910
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Chapter 29: Strange Bedfellows [Fimfiction.net] [Cache]
Jan 28th, 2019
3,697
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Chapter 30: A Good and Faithful Servant [Fimfiction.net] [Cache]
Dec 13th, 2018
3,894
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Chapter 31: Consensus [Fimfiction.net] [Cache]
Dec 14th, 2018
3,725
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Chapter 32: At Hell's Gate [Fimfiction.net] [Cache]
Dec 17th, 2018
4,091
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Chapter 33: The Cage [Fimfiction.net] [Cache]
Dec 18th, 2018
3,291
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Chapter 34: Unleashed [Fimfiction.net] [Cache]
Dec 19th, 2018
6,260
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Chapter 35: A Rainbow in the Dark [Fimfiction.net] [Cache]
Dec 20th, 2018
5,391
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Epilogue: To Rule In Heaven [Fimfiction.net] [Cache]
Dec 21st, 2018
2,890