Standard Deviation by David Harry Tannenbaum

The intersection of four imperfect lives provides the setting for this riveting novel of friendship and frustrated love. Cecil grows up facing the challenges of Asperger’s Syndrome and finds that the only person he can understand is a girl hardened by her struggles with life’s miseries. Cecil’s quadriplegic older sister demands from him companionship impossible for him to fulfill. The sister falls in love with a man who seems to be the perfect answer to her special needs. But will his hidden past shatter all their lives?