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.

It is the winter of 1879, and Dodge city has lost its snap. Thirty-one-year-old Wyatt Earp, assistant city marshal, loads his wife and all they own into a wagon, and goes with two of his brothers and their women to Tombstone, Arizona, land of the silver mines. There Earp becomes deputy sheriff, meeting up with the likes of Doc Holliday, Clay Allison and Bat Masterson as well as finding the love of his life, showgirl Josie Marcus.

Hired by a wealthy family to locate their teenage daughter, Sunny Randall, a former cop turned Boston P.I., soon finds herself the bodyguard for a difficult teenager who refuses to return to her family. But before long, Sunny is facing greater problems than she ever imagined including a criminal conspiracy that reaches to the top of the state government.

It is 1947 when Joseph Burke, ex-Marine, ex-husband, ex-somebody–is hired as a bodyguard to protect Lauren Roach, 25 and spoiled rotten. The unlikely duo becomes entangled with Burke’s boyhood hero, color-barrier breaking baseball player Jackie Robinson, in a story that is both thrilling and engaging. It is in the historical character Jackie Robinson that Mr. Parker finds inspiration and Joseph Burke may find his redemption. This is a work of fiction about a real man. Most of what I’ve written I’ve made up. I have, however, attempted to render Jackie Robinson accurately. As he was, or as I imagined him to be, in 1947, when I was turning 15, and he was changing the world. The rest is altogether fiction. It may be more Burke’s story then Jackie’s story. But, without Jackie, Burke would have had no story. And neither would I. Robert B Parker.

Justice is a drifter with no fear and no memory, trailed by a violent past. Nora is a beautiful widow bravely raising her young son on an isolated New Mexican ranch. When a ruthless cattle baron pushes longhorns into the valley, Justice vows to protect Nora and her boy. But how can he succeed against thirty hired guns… including the four outlaws who left him for dead?

One of the deadliest, crime-infested towns in Colorado Territory, Devil's Gulch needed more than a sheriff. They needed a gunslinger. So they pinned a badge on hardcase lawman John Holt. And the rest is history. As the town's new sheriff, John Holt achieved the impossible: He drove the devil out of Devil's Gulch. Corrupt, cutthroat rancher Joe Mullen—who ruled the land with an iron fist—is finally behind bars, thanks to Sheriff Holt. But the tables are turned when Mullen manages to overturn his prison wagon and make his escape—with an army of prisoners, outlaws, and lowlifes to do his bidding.

The great state of Texas is a land of opportunity. For outlaws. And horse thieves. And cattle rustlers. Not to mention bank robbers, train robbers, and anything-that-ain’t-nailed-down robbers. The state’s governor, Richard B. Hubbard, is at the end of his rope. He wants to clean up Texas once and for all—and he’s desperate enough to try something crazy: hire a man who can do what the Texas Rangers can’t. A man not tied down by a wife or children. Or rules. Who’s not afraid to go outside the law.

He left the West at the age of seventeen, leaving behind a rootless past and a bloody trail of violence. In the East he became one of the wealthiest financiers in America—and one of the most feared and hated. Now, suffering from incurable cancer, he has come back to New Mexico to die alone. But when an all-out range war erupts, Flint chooses to help Nancy Kerrigan, a local rancher. A cold-eyed speculator is setting up the land swindle of a lifetime, and Buckdun, a notorious assassin, is there to back his play.

In the Pandorax System, on the death world of Pythos, an ancient secret that has laid buried for millennia. Ignorant of this terror, troopers of the Catachan 183rd, stranded on Pythos, find themselves under attack by the forces of Chaos. Daemons in their thousands flock the sky, and none other than Warmaster Abaddon leads the attack. With the Death Guard and Black Legion arrayed against them, the Catachans appear to be doomed, until salvation arrives in the form of the entire Dark Angels Chapter. But what is the so-called 'Damnation Cache'?

The Long Trail is the first book in the best-selling series about the McCabes, a family building a ranch in the rugged wilderness of post-Civil War Montana, and of a young man seeking his family and his destiny.

Holt’s latest job is in Devil’s Gulch in Colorado Territory. But wiping out bands of bank robbers is just the beginning. More disorder is brewing, and the skittish mayor has handpicked Holt as the new sheriff. Holt is what the town needs: a mercenary with a badge, a loaded Remington, and a deadeye-aim for trouble. Devil’s Gulch has the vigilance committee. The man behind it—Joe Mullen, the largest rancher and mine owner in the valley—isn’t keen on an outsider like Holt muscling in on a good thing. Mullen already has his hand in all the crime in Devil’s Gulch.

With Apaches on the prod, ex-cavalry sergeant Sean Keegan, bounty hunter Jed Breen, and ex-Texas Ranger Matt McCulloch take shelter in a West Texas way station - along with a hot-as-a-pistol female bound for the gallows, a spiteful newspaper editor, and a coward with $50,000 who promises them five grand if they'll deliver his blood-soaked stash to his wife. Turns out, Indians might be the least of the problems for the trio, soon to be known as the Jackals. The loot's stolen property of the vengeful Hawkin gang, and these prairie rats are merciless, stone-cold killers.

Once a respected lawman in Kansas and Oklahoma, Ty Brannigan ended his career as town marshal of Warknife while he was still young enough to marry, start a family, and raise cattle. Now nearly sixty, he’s a proud husband, father of four, and proprietor of the Powderhorn Ranch. He’s more content wrangling cows than criminals. But for every outlaw Brannigan put in jail, noosed, or left to the vultures, he made even more enemies. They’ve made the mistake of targeting his wife and children—only to discover that Ty Brannigan enforces his own law with a lightning-fast draw.

Once, Frank Morgan had a wife and a future on the land — until a rich man with a grudge drove him out of Colorado. Since then, Morgan's taken up the one skill that always came easy — gunfighting — and drifted to a mining town in the New Mexico Territory. But there's nothing easy about two vicious gangs descending on the town and threatening to wreak havoc. With his reputation preceding him, Morgan is elected to stand in the outlaws' way.

Deadwood, South Dakota. Miners flock there seeking fortunes, while cardsharps, bandits, and businessmen seek to deprive those who strike gold by means fair and foul. Legendary former lawman Seth Bullock plans to keep the peace by any means necessary—especially when his good friend, President Theodore Roosevelt, is expected in town to celebrate the anniversary of Deadwood's founding.