C-Shapes by Matthew Fish
Price: Free! 71060 words.
Published on March 16, 2013. Fiction.
Eight years after a virus caused half of the population of the world to go mentally unstable, a man named Ethan chase signs up to become a "Sitter" or caretaker for two unstables. One of them, a 'Mirror' and the other a highly functioning 'Amnesiac.' As Ethan forges an unlikely friendship with his two cases--he is swept up in events that cause him to rethink what normal means.