Spenser is forced by loyalty into an alien world where violence is a way of lie and outsiders enter at a lethal risk. When Spenser's cohort Hawk is hired by the tenants of a gang-plagued Boston housing project known as "Double Deuce," he enlists his friend's aid. A friend's girl and her infant daughter have been gunned down. Though the act at first appears to be an accidental drive-by shooting, it soon becomes clear that it was premeditated murder.

When the bride of a Boston police detective vanishes, he hires Spenser to find her. His path leads from a New England college campus to glamorous L.A. sports clubs. When the trail turns to a world of prostitution, drug abuse, and self-destruction, Spenser must enter ghetto tenements to continue his search. Ultimately, Spenser must hire a Chicago hitman to help him free the girl from a sociopathic ex lover.

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 24 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.

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 Slide and many others like him back on the street. But it’s not a simple case of intimidation....

Gabby Leggett left her Boston family with big dreams of making it big as a model/actress in Hollywood. Two years later, she disappears from her apartment. Her family, former boyfriend, friends - and the police - have no idea where she is and no leads. Leggett's mother hires Spenser to find her, with help of his former apprentice, Zebulon Sixkill, now an LA private eye. Spenser barely has time to unpack before the trail leads to a powerful movie studio boss, the Armenian mob, and a shadowy empowerment group some say might be a dangerous cult.

What started out as a joke landed 17-year-old Dillon Yates in a lockdown juvenile facility in Boston Harbor. When he set up a prank Twitter account for his vice principal, he never dreamed he could be brought up on criminal charges, but that's exactly what happened.

Connie Kelly thought she'd found her perfect man on an online dating site. He was silver-haired and handsome, with a mysterious background working for the CIA. She fell so hard for M. Brooks Welles that she wrote him a check for almost 300,000 dollars, hoping for a big return on her investment. But within weeks, both Welles and her money are gone. Her therapist, Dr. Susan Silverman, hands her Spenser's card.

Carolina Garcia-Ramirez is a rising star in national politics, taking on the establishment with her progressive agenda. Tough, outspoken, and driven, the young congresswoman has ignited a new conversation in Boston about race, poverty, health care, and the environment. Now facing her second campaign, she finds herself not only fighting a tight primary with an old guard challenger but also contending with numerous death threats coming from hundreds of suspects. 

All is quiet in Paradise, except for a spate of innocuous vandalism. Good thing, too, because Jesse Stone is preoccupied with the women in his life, both past and present. As his ex-wife, Jenn, is about to marry a Dallas real-estate tycoon, Jesse isn't too sure his relationship with former FBI agent Diana Evans is built to last. But those concerns get put on the back burner when a major Boston crime boss is brutally murdered. Despite all evidence to the contrary, Jesse suspects it's the work of Mr. Peepers.

When it comes to writing, Robert B. Parker knows no boundaries. From the iconic Spenser detective series and the novels featuring Sunny Randall and Jesse Stone, to the groundbreaking historical novel Double Play, Parker's imagination has taken readers from Boston to Brooklyn and back again. In Appaloosa, fans are taken on another trip, to the untamed territories of the West during the 1800s.

Jesse Stone, still reeling from the murder of his fiancée by crazed assassin Mr. Peepers, must keep his emotions in check long enough to get through the wedding day of his loyal protégé, Suitcase Simpson. The morning of the wedding, Jesse learns that a gala 75th birthday party is to be held for folk singer Terry Jester. Jester, once the equal of Bob Dylan, has spent the last 40 years in seclusion after the mysterious disappearance of the master recording tape of his magnum opus, The Hangman's Sonnet.

When Sunny's long-time gangster associate Tony Marcus comes to her for help, Sunny is surprised - after all, she double crossed him on a recent deal, and their relationship is on shakier ground than ever. But the way Tony figures it, Sunny owes him, and Sunny's willing to consider his case if it will clear the slate. Tony's trusted girlfriend and business partner has vanished, appears to have left in a hurry, and he has no idea why. He just wants to talk to her, he says, but first he needs Sunny to track her down. 

In the wake of a huge storm, three bodies are discovered in the rubble of an abandoned factory building in an industrial part of Paradise known as The Swap. One body, a man's, wrapped in a blue tarp, is only hours old. But found within feet of that body are the skeletal remains of two teenage girls who had gone missing during a Fourth of July celebration 25 years earlier.

When we last saw Virgil Cole and Everett Hitch, they had just put things to right in the rough-and-tumble Old West town of Resolution. It's now a year later, and Virgil has only one thing on his mind: Allie French, the woman who stole his heart from their days in Appaloosa. Even though Allie ran off with another man, Virgil is determined to find her, his deputy and partner Everett Hitch at his side.

PI Sunny Randall has often relied on the help of her best friend Spike in times of need. When Spike's restaurant is taken over under a predatory loan agreement, Sunny has a chance to return the favor. She begins digging into the life of the hedge fund manager who screwed Spike over - surely a guy that smarmy has a skeleton or two in his closet - and soon finds this new enemy may have the backing of even badder criminals.