WALK THE LINE

In Dennis Lehane’s “Small Mercies,” the Boston busing protests are murder.

- LAURA MILLER

The pursuit of the truth turns a tough Southie woman’s world view inside out.

For the crime novelist Dennis Lehane, southern Boston is a muse, but for his characters it’s more of a curse. Lehane grew up in Dorchester, the setting for his series of books featuring Patrick Kenzie and Angela Gennaro, private detectives whose roots in the neighborhood help them solve cases. The best known of those books, “Gone, Baby, Gone” (1998), was adapted for the screen by Ben Affleck in 2007. Kenzie and Gennaro know the local hoods and toughs because they went to school with them. When the pair need muscle, they call on their sociopathic and improbably loyal buddy, Bubba Rogowski, also a former classmate, who sells illegal weapons, lives in a warehouse surrounded by booby traps, and comically terrifies everyone else.

But series fiction, in which our detectives must survive to investigate another day, can’t fully realize Lehane’s tragic vision of Boston’s working-class enclaves. It is his stand-alone novels—especially “Mystic River,” which appeared in 2001 and was made into a movie two years later by Clint Eastwood, and his most recent, “Small Mercies” (Harper)—that land like a fist to the solar plexus. They, too, are full of booby traps, but the metaphorical kind that blow up futures instead of limbs: negligent parents, busted marriages, dead-end jobs, booze, poverty, violence, resentment, and misdirected hate.