Meanwhile, Gillan McArdle’s academic career is ending because of one stupid lapse of judgement. Offered a short-term contract, he lands on the Hebridean island of Harris to investigate obscure animal bones. Quickly dismissing the unicorn skull as a thinly disguised fake, he can’t deny there’s something unusual about these bones. Baited by rumors of a majestic tusked horse roaming the uplands, Gill begins to suspect someone is manipulating him. As he gradually unravels the mystery of the skull, he grasps a disturbing conclusion: If this creature does exist, the evidence suggests it’s a killer.

Over 200 years ago, a covert expedition shadowing Lewis and Clark disappeared into the wilderness of central Idaho. Now, seven anthropology students and their professor vanish in the same area. The key to finding them lies in an ancient secret, one involving alchemy, gold, and immortality...a secret that men throughout history have sought to unveil. Michael Rempart is a brilliant archeologist whose colorful and controversial career has earned him admiring fans and implacable foes, but he is plagued by a troubling sense of the supernatural and a mysterious spiritual intuitiveness.

The disappearance of a three-year-old girl from her isolated Highland home one summer shook the nation. A massive police search involving divers in the loch and dogs combing the moorland and mountains had failed to find Lily Masterton. Three years later, the world may have forgotten the blond-haired girl with the big blue eyes, but her grief-stricken parents hire Private Investigator Teàrlach Paterson—an expert in finding missing children—to bring their precious Lily home. But this is no ordinary family struck by tragedy.

Glasgow law student David Hunter is drifting through life and feels something is missing. When on a night out someone tries to kill him and he discovers he is from a long line of witches known as Dream Dancers, his life is turned upside down. Now David has unwittingly exposed himself to a world of powerful witches, clandestine government agencies, and a fight to protect the Akashic records. Is a life filled with magick really his true calling in life?

A man lies under the tawny earth, hands still clutching the knife that killed him. Thorfinn Sigurdarson, Earl of all Orkney and Caithness, has made a mistake, and he won’t let himself forget it. Now, rumours have started in the Norse lands that he might be getting a second chance - but should he take it, when it means that dead men are walking? 

Detective Inspector Macleod returns to his island home 20 years after the painful loss of his wife. With a disposition forged in strong religious conservatism, he must bond with his new partner, the free spirited and upcoming female star of the force, to seek the killer of a young woman and shine a light on the evil beneath the surface. To do so, he must once again stand in the place where he lost everything. Only at the water’s edge will everything be made new. 

Hours later, the man’s cold body lies in the city mortuary, alongside the woman he couldn’t save. And his sister, unconventional nurse Gemma Tate, tracks down troubled police inspector Sebastian Bell to unravel the truth. Sebastian has enough pressure to solve the murder of an aristocratic heiress without Gemma meddling in his case. But the cryptic sentences she brings him from her brother’s notebook could be a crucial lead. If only they knew what “milky way” meant.

D.I. Duncan McAdam is dispatched home to the Misty Isle. A body has been found buried in a remote location on the Waternish peninsula. Well-preserved in the peat, Isla Matheson—missing for the better part of two decades—is revealed to a shocked island community. A teenage runaway is dead...and no one is talking.

Sara Morin, a brilliant computational biologist, makes a discovery that will fundamentally change our understanding of human evolution. But when she publishes her results, she ignites a firestorm she never expected.

The first two books in the John Decker series, and the John Decker prequel novella, Soul Catcher. 

It had been a rough five years for Memphis Police Officer Jake Jessup. Blaming himself for the death of two partners, a divorce, and almost losing his job, the three-day canoe and kayak trip in the Ozarks sounded like the perfect way to reconnect with family and friends, and to put old demons to rest. What he found instead were a new set of demons, only these were real...and deadly. A float turns tragic for a group of boaters when a secret military project escapes into the Ozark Mountains of West Arkansas.

In the Highlands of Scotland lies the Hole, a famed passageway under the town of Bethel where hundreds have vanished. After years of ignored recovery wishes, the Hole’s ownership has passed to Elisabeth Wingate. A former child star and British fashion mogul, Elisabeth wants to redeem her scandalous, reckless life. She agrees to finance an expedition to retrieve the legion of bodies that have accumulated over the years, but there’s only one catch: She wants to venture alongside the caving team. But they’re not alone down there....

Amid a revolution, archaeologist Christopher Jordan and ancient manuscript expert Kathryn Ferguson travel to Syria in search of the original scroll of Marks' Gospel. Paralleling their quest is the story of the evangelist's escape with the scroll from the Roman siege of Jerusalem in 70 C.E., his struggles to complete the manuscript, and his journeys and efforts with the daughter of Peter the Apostle to protect and save it for the ages. For both couples, time is running out and enemies are closing in.

Millions are fans of Diana Gabaldon's popular Outlander books and television series, but few know that Gabaldon's fictional Castle Leoch was inspired by a real Scottish castle, Castle Leod. The two sisters who lived there at the turn of the 20th century were among the most fascinating and talked-about women of their era.

Ireland, 1891. Happy at first to have given her husband the son he longed for, Rosalind Thornton begins to worry about his increasingly erratic spending and volatile moods. When his body turns up in the woods, her guilt remains in question for 130 years. 2019. Fiona Foley needs to put her husband's betrayal behind her. The disillusioned history teacher travels to the sweeping Wexford coast to assist an eccentric descendant of the Thornton family. Can Fiona figure out what really happened on the fateful night Rosalind disappeared forever?