3rd Degree

This is an okay book co-written by James Patterson and Andrew Gross. Detective Lindsay Boxer is jogging along a beautiful San Francisco street when a fiery explosion rips through the neighborhood. A town house owned by an Internet millionaire is immediately engulfed in flames, and when Lindsay plunges inside to search for survivors, she finds three people dead. An infant who lived in the house cannot be found, and a mysterious message at the scene leaves Lindsay and the San Francisco Police Department completely baffled.