Backbone (джен)

The turtles investigate a mysterious series of earthquakes under the city, only to find a cunning mutant at their heart. When things don't go to plan, the weight of the world rests on the shell of one turtle.
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You know those episode-starters with character voice-overs that open the first five seasons of the 2003 cartoon? Ammo_Writes suggested a trade of openings--Ammo writes one, I write one, and then we swap to complete the other person's story. Ammo wrote the teaser-opening for this fic, and I filled in the rest of the story. ❤️ (And for their fic, vice-versa!)