Fic: Solving for Imaginary Numbers (POI x Sorcerer's Apprentice)

Gen; Person of Interest x Sorcerer's Apprentice, 2000 words. Post-movie. For Day 8 of 2013.

To a mind trained to pluck at every loose thread, Blake's story was so obviously a false front that it was beginning to make John wonder if it was hiding something else altogether.

Solving for Imaginary Numbers

(Linked @ wishlist_fic and AO3; written for milady78)