Reason of Shadow (TMNT fanfiction)
You can handle being captured. Finding out he is also torturing your brother changes everything.
TMNT fanfiction from the 2012 Nic version, set somewhere in S2:
Words: ~19,000
Rating: T for graphic violence
Disclaimer: characters not mine, but the premise, wording, and story are, though. Those I claim. I'm working on getting the characters
Originally published on deviantART as multichapter completed June 11, 2015. Also appears on fanfiction.net and archiveofourown.org.