A Son for a Daughter

Based on a little prompt on Tumblr that I sent to BlueCladHero for his reaction - 'Splinter has agreed to exchange you for the return of his daughter. (In the hopes of later rescuing you, but you don't know that.)' This is the tragic story that arose from that prompt. Rated M. (Nominated for 2013 Stealthystories AFFAs for Most Spot-on Supporting Character (Karai) & Best Non-Con)