"Nephthys Kinwell is a taxi driver of sorts in Washington, DC, ferrying passengers in a 1967 Plymouth Belvedere with a ghost in the trunk. Endless rides and alcohol help her manage her grief over the death of her twin brother, Osiris, who was murdered and dumped in the Anacostia River. Unknown to Nephthys when the novel opens in 1977, her estranged great-nephew, ten-year-old Dash, is finding himself drawn to the banks of that very same river. It is...