This is the eighth book in this 30 some book series. I don’t think I’ll ever get to the end and at this point I have downloaded nine and 10 and plan on stopping there. The series is situated in Michigan, which is where I Harken from. The following words as usual are from Claude AI.
**Summary**
Downriver is the eighth Amos Walker novel, published in 1988. Richard DeVries was a 22-year-old Black man about to get a shot with the Pistons when he was arrested during the 1967 Detroit riots for throwing a Molotov cocktail. Police added an armored-car robbery to the charge. Twenty years later he's released, and the first person he calls is Walker, hiring him to find the men who really robbed the armored car. DeVries claims he was framed and that the $200,000 never recovered is rightfully his. He also names a rising auto executive as the "revolutionary" who got him to throw the firebomb. Walker ends up among a would-be car magnate, his ex-model wife, and a centenarian auto pioneer. By the violent ending he has uncovered a computer scam and some ugly 20-year-old secrets.
**Review**
Critics generally rate it well. Publishers Weekly said the main villain isn't especially surprising, but praised the colorful characters, crackling dialogue, authentic Detroit setting and throwaway humor. Reader reviews echo this: a fast-paced, gritty story driven more by plot than character development, with Walker's pithy first-person narration doing much of the work. One reader called it one of Estleman's best, and said fans of Chandler's Marlowe will like Walker. Another felt that the characters were fascinating enough to prop up a slightly fantastical plot.
My take: it's a good fit if you like hardboiled private-eye fiction with a strong sense of place, especially Detroit and its racial and political history. The plot is the weaker element, so read it for the voice and setting. It also works as a standalone, so you don't need the earlier books.