"For over five years, the Four Monkey Killer has terrorized the residents of Chicago. When his body is found, the police quickly realize he was on his way to deliver one final message, one which proves he has taken another victim who may still be alive. As the lead investigator on the 4MK task force, Detective Sam Porter knows even in death, the killer is far from finished. With only a handful of clues, the elusive killer's identity remains a mystery....

Savvy investigator Vic leaves her comfort zone in Chicago to investigate the disappearances of a young film student and a faded Hollywood star in Kansas, where a university town, the remnants of the Cold War and long-simmering racial tensions are stirred into violence by mysteries and murders.

"The Double Deuce is a Boston housing project. Good people live in poverty there. So do the Hobarts, a gang that relieves boredom by shooting pedestrians. To protect the residents of the Double Deuce, urban gunslinger Hawk enlists the aid of private investigator Spenser. Together, they try to track down Major Johnson, the gang leader responsible for a particularly tragic drive-by shooting."--from NoveList.

Lily Ellsworth the grand dame of Dowling, Massachusetts hires Spenser to investigate her grandson Jared Clark's alleged involvement in a school shooting. Though seven people were killed in cold blood, and despite Jared's being named as a co-conspirator by the other shooter, Mrs. Ellsworth is convinced of her grandson's innocence.

Ten years ago, Paul Giacomin's corrupt father and loose mother used the boys as a pawn in their violent race: only Spenser could call them off and straighten out the misled teen -- almost getting killed in the process. Paul is now twenty-four and reconciled to his mother's wanton ways. But when Patty Giacomin vanishes, Paul begs Spenser to help him rescue her from the clutches of her boyfriend, a shady character he's sure coerced his mother into running....

When Lisa St. Claire, the beautiful young bride of a Boston police detective vanishes mysteriously, Spenser joins the search for the missing woman, following a dangerous trail that leads him to a sociopathic Latino ex-lover and into a deadly confrontation with Lisa's dark past.

It's December in Boston, and Spenser is busy planning the menu for Christmas dinner when he's confronted in his office by a young boy named Slide. Homeless and alone, Slide has found refuge with an organization named Street Business, which gives shelter and seeks job opportunities for the homeless and lost. Slide's mentor, Jackie Alvarez, is being threatened, and Street Business is in danger of losing its tenuous foothold in the community, turning...

Spenser is back and embroiled in a dangerous and multi-layered case. Someone has been killing racehorses at stables across the south, and Walter Clive, president of Three Fillies Stables, hires him to find out who. Spenser goes to Georgia to protect Hugger Mugger, a two-year-old destined to become the next Secretariat. Disregarding the resentment of the local Georgia law enforcement, he takes the case. Despite the veneer of civility, Spenser encounters...

Boston private investigator Spenser heads west to the rich man's haven of Potshot, Arizona, a former mining town reborn as a paradise for Los Angeles millionaires, where he has been hired to investigate a murder in which the suspects are a local gang of misfits, desert rats, drunks, and thieves led by a charismatic individual known only as The Preacher.

Fifty Minutes is the title of a Hollywood based TV series being shot on location in Boston, but to Spenser it's "Trouble with a capital T". After signing on to protect its glamorous female star Jill Joyce, from an escalating chain of anonymous harassments to find himself saddled with a lot more than he bargained for.