
Hour of Twilight
Twilight Sparkle has ruled Equestria for over a thousand years. From her throne atop the floating city of Concord, she enforces ruthless harmony over the handful of surviving settlements. But Twilight is afraid: Equestria's survival always hangs by a thread, as enemies more ancient than the Alicorns threaten to return and devour what she has built.
Twilight selects her star pupil, a young unicorn named Star Orchid, to travel down from the perfect city of Concord into the dangerous ruins beneath, so that she might locate these forces, and help Twilight to destroy them. Only when every threat to Equestria is finally dismantled will she be able to rest. Until then, there is much left to purify.
Edited by Two Bit and Sparktail. Cover by Zutcha
Updates Wednesdays.
This story was commissioned by TyrannisUmbra, with additional funds donated by my enabler, Two Bit. If you'd like one of your own, drop me a PM!
This story takes place in the same universe as Why We Dig. I'm not going to call it a sequel, since none of its characters will be aware of anything in that story, so you won't have to be either.

56 Chapters:
- Chapter 1: Andromeda 2019-11-25 08:04:16 UTC3204
- Chapter 2: Centaurus 2019-11-28 15:00:01 UTC5096
- Chapter 3: Aquila 2019-11-29 15:00:01 UTC2974
- Chapter 4: Dorado 2019-11-30 15:00:01 UTC3125
- Chapter 5: Volans 2019-12-04 15:00:01 UTC2636
- Chapter 6: Cetus 2019-12-11 15:00:02 UTC3657
- Chapter 7: Tucana 2019-12-18 15:00:01 UTC3434
- Chapter 8: Lepus 2019-12-25 15:00:01 UTC3463
- Chapter 9: Sculptor 2020-01-01 17:00:01 UTC4416
- Chapter 10: Musca 2020-01-08 17:00:01 UTC4665
- Chapter 11: Pyxis 2020-01-15 17:00:00 UTC4651
- Chapter 12: Lyra 2020-01-22 16:59:59 UTC4946
- Chapter 13: Vela 2020-01-30 01:19:59 UTC5045
- Chapter 14: Equuius 2020-02-05 15:59:58 UTC3933
- Chapter 15: Ara 2020-02-12 20:59:58 UTC4530
- Chapter 16: Crux 2020-02-19 17:59:57 UTC4535
- Chapter 17: Indis 2020-02-26 17:59:57 UTC4494
- Chapter 18: Apus 2020-03-04 17:59:57 UTC4403
- Chapter 19: Horologium 2020-03-11 16:59:56 UTC4627
- Chapter 20: Perseus 2020-03-18 15:59:56 UTC4559
- Chapter 21: Cancer 2020-03-26 04:20:08 UTC4577
- Chapter 22: Canis 2020-04-01 15:59:55 UTC4023
- Chapter 23: Malus 2020-04-08 15:59:55 UTC4836
- Chapter 24: Phoenix 2020-04-15 15:59:54 UTC4666
- Chapter 25: Crater 2020-04-22 15:59:54 UTC4383
- Chapter 26: Bootes 2020-04-29 15:59:53 UTC4487
- Chapter 27: Carina 2020-05-06 15:59:53 UTC4835
- Chapter 28: Equuleus 2020-05-13 15:59:53 UTC4292
- Chapter 29: Leo 2020-05-20 15:59:53 UTC3588
- Chapter 30: Pavo 2020-05-27 16:00:53 UTC5076
- Chapter 31: Antlia 2020-06-03 15:59:53 UTC4395
- Chapter 32: Aquarius 2020-06-10 15:59:45 UTC4539
- Chapter 33: Aries 2020-06-17 15:59:31 UTC4191
- Chapter 34: Venatici 2020-06-24 15:59:17 UTC4492
- Chapter 35: Auriga 2020-07-01 15:59:03 UTC5177
- Chapter 36: Vulpecula 2020-07-08 15:58:50 UTC3764
- Chapter 37: Caelum 2020-07-15 15:58:36 UTC3881
- Chapter 38: Camelopardalis 2020-07-22 15:58:27 UTC4459
- Chapter 39: Reticulum 2020-07-29 15:58:10 UTC4988
- Chapter 40: Serpens 2020-08-05 21:32:57 UTC4596
- Chapter 41: Pictor 2020-08-12 14:57:43 UTC4372
- Chapter 42: Lynx 2020-08-19 22:56:41 UTC4600
- Chapter 43: Indus 2020-08-26 22:04:11 UTC4426
- Chapter 44: Chamaeleon 2020-09-02 14:57:03 UTC3647
- Chapter 45: Triangulum 2020-09-09 14:56:50 UTC4658
- Chapter 46: Mensa 2020-09-16 14:56:36 UTC4508
- Chapter 47: Gemini 2020-09-23 14:56:21 UTC4866
- Chapter 48: Monoceros 2020-09-30 14:56:07 UTC4611
- Chapter 49: Puppis 2020-10-08 03:20:51 UTC3901
- Chapter 50: Hydrus 2020-10-14 14:55:38 UTC4345
- Chapter 51: Orion 2020-10-21 14:55:23 UTC4986
- Chapter 52: Scutum 2020-10-28 14:55:08 UTC4677
- Chapter 53: Eridanus 2020-11-04 14:54:53 UTC5253
- Chapter 54: Grus 2020-11-11 14:54:39 UTC4531
- Chapter 55: Telescopium 2020-11-18 14:54:24 UTC5553
- Chapter 56: Pegasus 2020-11-26 14:54:07 UTC5731