If you've discovered Sophie Lyon's dog-centered cozy mysteries and want to know where to start โ€” or what order to read them in โ€” you're in the right place. Lyon writes fast-paced, heartwarming K-9 and pet mysteries where the four-legged characters are as memorable as the sleuths. Below is every Sophie Lyon book, organized by series in reading order, with a short description and publication date for each.

New to Sophie Lyon? Start with Trail Gone Dark, the first book in the K-9 Search & Rescue Mysteries โ€” her flagship series and the ideal entry point.

K-9 Search & Rescue Mysteries in Order

Sophie Lyon's flagship series and the best place to start. Search-and-rescue handler Gemma Hartley and her German Shepherd Kira work gripping, atmospheric cases in the Colorado high country. Fourteen books.

Trail Gone Dark by Sophie Lyon

#1 โ€” Trail Gone Dark ยท Available now

When a missing-person page sounds before dawn โ€” 72 hours overdue โ€” search-and-rescue handler Gemma Hartley and her German Shepherd Kira are in the truck within minutes. Three days in the Colorado mountains, no signal, and a trail gone cold. View on Amazon โ†’

Buried Deep by Sophie Lyon

#2 โ€” Buried Deep ยท Available now

January in Elk Creek: ski crowds pour in and the trails go silent. But the mountain buries its secrets under four feet of powder โ€” and this winter, one of them surfaces. Gemma and Kira must dig out a truth someone hoped stayed frozen. View on Amazon โ†’

What She Knew by Sophie Lyon

#3 โ€” What She Knew ยท Available now

Mud season strips Elk Creek bare โ€” the snow retreats and the past resurfaces, sometimes violently. A woman kept her secret for twenty-five years and was finally ready to tell it. She never gets the chance, and Gemma and Kira uncover what she knew. View on Amazon โ†’

The Silent Season by Sophie Lyon

#4 โ€” The Silent Season ยท Available now

Colorado Trail Days turns Elk Creek into a carnival of food vendors, floats, and thousands of hikers. Somewhere in that crowd, a killer has been hiding in plain sight for twenty-six years โ€” and this is the celebration where the past finally catches up with them. View on Amazon โ†’

The Burning Season by Sophie Lyon

#5 โ€” The Burning Season ยท Available now

The Ridgeline Fire is four thousand acres and growing, the long-awaited trial is a week away, and human remains have just surfaced in the burn zone. Twenty-six years after Brianna Hartley vanished, the fire is unearthing what the mountains hid. View on Amazon โ†’

The Long Thaw by Sophie Lyon

#6 โ€” The Long Thaw ยท Available now

Spring has come to Elk Creek and everything should finally feel like enough โ€” a proposal, a quieter season, justice served. Then a social-media influencer with millions of followers vanishes on the Colorado Trail, and Gemma and a visibly aging Kira are called back out. View on Amazon โ†’

The Quiet One by Sophie Lyon

#7 โ€” The Quiet One ยท Available now

When skeletal remains surface on a remote trail outside Elk Creek, newlywed handler Gemma and her aging German Shepherd are pulled into a thirteen-year-old secret the mountains have kept buried. Some cases don't want to be solved โ€” and this one has waited a long time. View on Amazon โ†’

The Silent Partner by Sophie Lyon

#8 โ€” The Silent Partner ยท Available now

Russell Vaughn told his wife he was in Denver on business. Instead his car turns up at a trailhead, keys in the ignition, and he hasn't been seen in forty-eight hours. As autumn settles over Elk Creek in layers of aspen gold, Gemma follows a trail that doesn't add up. View on Amazon โ†’

The Cold Truth by Sophie Lyon

#9 โ€” The Cold Truth ยท Available now

The worst storm in a decade is bearing down on Elk Creek when the callout comes: a young woman overdue from the ridge. But she isn't lost โ€” she's hiding. Six months pregnant and racing a blizzard, Gemma has to reach her before whatever she's running from does. View on Amazon โ†’

The Longest Day by Sophie Lyon

#10 โ€” The Longest Day ยท Available now

Six-year-old Stella Briggs has been missing from her family's campsite since nine o'clock last night โ€” and she isn't alone in those mountains. Eight and a half months pregnant, Gemma answers the call anyway, because a child in the dark can't wait for a better time. View on Amazon โ†’

The Good Man by Sophie Lyon

#11 โ€” The Good Man ยท Available now

Kira no longer runs to the door; she lifts her head from her sunlit spot and sweeps her tail, and that is enough. The vet has been honest about the old shepherd's time. As Gemma faces her partner's twilight, one more case calls them both back to the trail together. View on Amazon โ†’

The Hunting Ground by Sophie Lyon

#12 โ€” The Hunting Ground ยท Available now

Gemma is leaving Elk Creek for the Pacific Northwest, but the goodbyes are barely finished when a new handler arrives with a black shepherd and reasons of her own for coming. Before Gemma can go, one last hunting-season case ties the station's past to its future. View on Amazon โ†’

The Weight of Silence by Sophie Lyon

#13 โ€” The Weight of Silence ยท Coming August 21, 2026

The fraud is exposed, the testimony given, the man who ordered four veterans killed finally named. Now the world has to believe it. As the case against a corrupt empire goes public, Gemma learns that proving the truth and making it stick are two very different fights. View on Amazon โ†’

The Long Way Home by Sophie Lyon

#14 โ€” The Long Way Home ยท Coming September 18, 2026

The March thaw uncovers Kira's grave โ€” and a fugitive. The man who ordered four veterans killed is somewhere in these mountains, waiting for the world to stop looking. After a long winter, Gemma has one last search to finish, for herself as much as anyone. View on Amazon โ†’

Pacific Northwest K-9 Mysteries in Order

A companion series following former Innocence Project attorney Kate Soren and her shepherd Scout to the misty Olympic Peninsula โ€” maritime cases, fishing-fleet secrets, and shoreline scent work. Eight books.

The Deep Green by Sophie Lyon

#1 โ€” The Deep Green ยท Coming August 7, 2026

Kate Soren came home to start over after a loss she couldn't carry alone. Building a search-and-rescue program on the Olympic Peninsula, she and her German Shepherd Scout learn the rain forest hides what satellites can't see. View on Amazon โ†’

The Salt Line by Sophie Lyon

#2 โ€” The Salt Line ยท Coming September 4, 2026

A body washes up on the beach locals call the Salt Line โ€” a maritime heritage surveyor whose months of work documented a contested stretch of coast. The tide moves the boundary twice a day, and Kate and Scout have to read the shoreline before the water erases the rest. View on Amazon โ†’

The River House by Sophie Lyon

#3 โ€” The River House ยท Coming October 2, 2026

A father and his two children vanish from a riverside cabin during the worst flood in a decade. The Queets is at glacial flood stage, the cabin half-submerged, and the river doesn't lie โ€” it just takes. Kate and Scout wade in before the water carries the answers away. View on Amazon โ†’

The Fog Season by Sophie Lyon

#4 โ€” The Fog Season ยท Coming October 30, 2026

Four pins on the sheriff's map sit on the same twelve-mile stretch of coastal trail โ€” three faded cold cases, one fresh. Three hikers were presumed dead; now another is missing, and the fog that swallowed them has been hiding more than the path. Kate and Scout head in. View on Amazon โ†’

The Burning Ridge by Sophie Lyon

#5 โ€” The Burning Ridge ยท Coming November 27, 2026

Smoke rises over the Olympic Divide for three days before the body is found in the burn zone: a fortune in carbon credits sold for trees that no longer exist. Kate and Scout have hours before the wildfire reaches the truth. View on Amazon โ†’

The Quiet Strait by Sophie Lyon

#6 โ€” The Quiet Strait ยท Coming December 25, 2026

The Solveig was due back at first light; by afternoon the berth is still empty. Then debris washes up on the wrong beach and Scout alerts on live human scent heading inland. A boat that never came home hides a survivor everyone thinks drowned. View on Amazon โ†’

The Long Rain by Sophie Lyon

#7 โ€” The Long Rain ยท Coming January 22, 2027

An atmospheric river drowns every scent Kate has learned to read. A tribal council member is found in a flooded road, his death ruled accidental within hours โ€” but the storm exposed a sealed evidence case instead of erasing it. Kate and Scout work the rain. View on Amazon โ†’

The Treeline by Sophie Lyon

#8 โ€” The Treeline ยท Coming February 19, 2027

For nearly four years Kate has watched the Olympic Mountains and never gone up. Now a mountaineer has vanished above eight thousand feet, and the case she's quietly been assembling takes her to the treeline at last. The climax of Arc One. View on Amazon โ†’

Paws & Probable Cause in Order

A fast, bingeable six-book series with one-word command titles (STAY, HEEL, DOWNโ€ฆ), set in the seaside town of Tidal Cove and starring animal behaviorist Wren Calloway.

STAY by Sophie Lyon

#1 โ€” STAY ยท Available now

Divorce papers signed, career in shambles, animal behaviorist Wren Calloway thought she knew what rock bottom looked like โ€” until a dead body turns up in her fresh-start town of Tidal Cove, and the only witness is a dog who clearly knows more than he's letting on. View on Amazon โ†’

HEEL by Sophie Lyon

#2 โ€” HEEL ยท Available now

Margot Bancroft was the queen of Tidal Cove society, and her Christmas gala the invitation everyone wanted. When the season's glittering party turns deadly, Wren finds herself surrounded by secrets, suspicion, and one dog who saw exactly what happened. View on Amazon โ†’

DOWN by Sophie Lyon

#3 โ€” DOWN ยท Available now

Spring returns to Tidal Cove โ€” the snow melting, the tourists coming back โ€” and with it a murder born from the town's oldest fight: progress versus preservation. As the community takes sides, Wren and a very observant dog work to find who turned the feud lethal. View on Amazon โ†’

Come by Sophie Lyon

#4 โ€” Come ยท Available now

Summer in Tidal Cove means sunshine, lobster rolls, and the annual regatta โ€” supposed to be Wren's first carefree season in her new home. But forty years ago a sailor died at that same race and everyone called it an accident. Everyone, it turns out, was lying. View on Amazon โ†’

SIT by Sophie Lyon

#5 โ€” SIT ยท Available now

A year ago Wren arrived in Tidal Cove with nothing; now she's built the life she wanted โ€” a thriving practice, friends who feel like family. Then someone sets out to take all of it away, and she has to fight for the home she finally found. View on Amazon โ†’

GUARD by Sophie Lyon

#6 โ€” GUARD ยท Available now

Two days before her wedding, Wren should be thinking about flowers and vows. Instead she's standing over a dead federal investigator, and the questions his death raises reach further back than she expected. The finale of the Tidal Cove arc. View on Amazon โ†’

The Pet Sitter's Predicament in Order

Cozy Lowcountry mysteries following Charleston pet sitter Carrie Ashford, whose house calls keep turning up trouble. Charming Southern setting, animals underfoot, six books.

A Deadly Stay by Sophie Lyon

#1 โ€” A Deadly Stay ยท Available now

After eighteen years as an event planner and fifteen years of marriage, forty-two-year-old Carrie Ashford thought she had life figured out. She wanted peace and a fresh start pet-sitting in the Lowcountry. What she got instead was a corpse โ€” and a very good dog. View on Amazon โ†’

Hush Little Hound by Sophie Lyon

#2 โ€” Hush Little Hound ยท Available now

Two months after her first case, Carrie is settling into Charleston life โ€” pet-sitting for the wealthy, navigating feelings for Detective Marcus Hale โ€” and thought she'd left murder behind. Then a fall that isn't quite an accident pulls her right back in. View on Amazon โ†’

The Cat Came Back by Sophie Lyon

#3 โ€” The Cat Came Back ยท Available now

Serena Hartwell seemed to have it all: wealth, beauty, a stunning Daniel Island home, and a Maine Coon larger than most toddlers. When the glossy surface cracks, Carrie discovers some secrets are too big to drown โ€” and the cat may know more than anyone. View on Amazon โ†’

Paws Before Dying by Sophie Lyon

#4 โ€” Paws Before Dying ยท Available now

The Whitmore Inn has survived two centuries of Charleston history, its gardens legendary and its guest list a who's who of Southern society. But some flowers are deadlier than they look, and Carrie's latest job drops her into a poisoned paradise. View on Amazon โ†’

Sit Stay Slay by Sophie Lyon

#5 โ€” Sit Stay Slay ยท Available now

The Crawford-Laurent wedding at Magnolia Grove promised to be Charleston's most glamorous event of the year. Then 'till death do they part' arrives sooner than anyone planned, and Carrie โ€” pets in tow โ€” has to find a killer before the reception becomes a crime scene. View on Amazon โ†’

Until Death Do Us Bark by Sophie Lyon

#6 โ€” Until Death Do Us Bark ยท Available now

Nearly two years, six cases, a menagerie of rescued animals, and one engagement ring Carrie still can't believe she's wearing. When a law clerk is poisoned mid-investigation into local corruption, her most demanding case yet asks everything of her. The series finale. View on Amazon โ†’

About Sophie Lyon

Sophie Lyon is a contemporary cozy mystery author known for her dog-centered series, where search-and-rescue and pet-sitting mysteries put loyal canine companions at the heart of the action. Her books blend page-turning suspense with the warmth cozy readers love โ€” and, true to the cozy contract, the dog always comes home. Explore her full catalog on her author page, or browse more animal cozies and cozy authors Aโ€“Z.