A backwoods fantasy in a riverland derived from mysterious science indistinguishable from magic, by a master of SF time exploration.— Gregory Benford takes readers along on one man's search for his father through the chaos of shifting time. In the far future, science and technology have advanced well beyond the limits of time, and though scientists know what's technology and what's magic, to others, mystery and danger invade their lives and time shifts in chaotic swirls.Award-winning SF writer and physicist Gregory Benford takes readers on a riverboat ride like no other as "John" searches for a father missing since yesterday, or maybe today, or most probably since tomorrow.