Things had been uneventful here in Gensokyo. The two most recent incidents, one was easily solved, the other, Reimu doesn't like talking about. Then one day, a stout gentleman in a top hat comes and changes everything. After a fateful party at the Scarlet Devil Mansion. The souls of our girls are put in the bodies of steam locomotives, forced to work by Sir Topham Hatt. It will take every once of hope, luck, steam, and strength to escape their Sudrian imprisonment, created by a human turned youkai, known to many as the Reverend Wilbert Awdry, a beloved children's author who exploited the sentient engines of Sodor to make bank, but the original souls of the engines were taken by an evil corporation and thus the Touhou girls replaced them. Not everyone will come out of Sodor alive.
DISCLAIMER: This does have a far bit of adult humor and language, even references to *shudder* "Dirty Doujins".
Chapter 1: Our Girls Wait Warmly
https://www.fanfiction.net/s/12562752/1/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment (https://www.fanfiction.net/s/12562752/1/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment)
Chapter 2: The Fateful Party
https://www.fanfiction.net/s/12562752/2/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment (https://www.fanfiction.net/s/12562752/2/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment)
Chapter 3: Reimu's Railway Reveal
https://www.fanfiction.net/s/12562752/3/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment (https://www.fanfiction.net/s/12562752/3/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment)
Chapter 4: Sodor, Sacred Island
https://www.fanfiction.net/s/12562752/4/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment (https://www.fanfiction.net/s/12562752/4/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment)
Chapter 5: Yukari and Aya
https://www.fanfiction.net/s/12562752/5/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment (https://www.fanfiction.net/s/12562752/5/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment)
Chapter 6: Old Iron
https://www.fanfiction.net/s/12562752/6/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment (https://www.fanfiction.net/s/12562752/6/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment)
Chapter 7: The Duke Enters\Yukari's Plan
https://www.fanfiction.net/s/12562752/7/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment (https://www.fanfiction.net/s/12562752/7/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment)
Chapter 8: The Distraction...
https://www.fanfiction.net/s/12562752/8/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment (https://www.fanfiction.net/s/12562752/8/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment)
Chapter 9: The Sacrifice...
https://www.fanfiction.net/s/12562752/9/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment (https://www.fanfiction.net/s/12562752/9/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment)
Chapter 10: Miko's Matrix: End of the Line
https://www.fanfiction.net/s/12562752/10/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment (https://www.fanfiction.net/s/12562752/10/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment)
Chapter 11: The Nightmare Ends...
https://www.fanfiction.net/s/12562752/11/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment (https://www.fanfiction.net/s/12562752/11/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment)
Chapter 12: The Saved, Where are They Now?
https://www.fanfiction.net/s/12562752/12/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment (https://www.fanfiction.net/s/12562752/12/%E6%9D%B1%E6%96%B9-Revered-Reverend-of-Illustrated-Imprisonment)
Yet another fanfic by Pergold that will make you go "WHAT? WHAT DID I JUST READ! WHO ASKED FOR THIS?!"