Fleeing New York to find refuge as a ranger in the remote backcountry of West Texas, Anna Pigeon stumbles into a web of violence and murder when fellow park ranger Sheila Drury is mysteriously killed and another ranger vanishes.

Cumberland Island, off the coast of Georgia, is a breathtaking setting for tedious fire presuppression duty. But Anna's boring routine is shattered when two men die in a plane crash, victims of sabotage.

When park ranger Anna Pigeon stumbles on the corpse of a girl with a noose around her neck, she is plunged into a murder investigation with serious racial overtones in the heart of the Deep South. By the author of Liberty Falling.

While studying grizzly bears in Waterton/Glacier National Peace Park on the border of Montana and Canada, ranger Anna Pigeon finds herself in the midst of a series of deadly bear attacks that leave her struggling to re-evaluate her own view of nature. By the author of Deep South.

Escaping a proposal of marriage from Sheriff Paul Davidson, Anna Pigeon takes a post as a temporary supervisory ranger on remote Garden Key in Dry Tortugas National Park, a grouping of tiny islands in a natural harbour seventy miles off Key West. This island paradise has secrets it would keep, not just in the present, but in shadows from its gritty past, when it served as a prison during the Civil War, and for the Lincoln assassination conspirators afterward.

Here, on this last lick of the United States, in a giant crumbling fortress, Anna has little company besides the occasional sunburned tourist or unruly shrimper. When her sister, Molly, sends her a packet of letters from a great-great-aunt who lived at the fort with her husband, a career soldier, Anna?s fantasy life is filled with visions of this long-ago time.

But a mysterious boat explosion and the discovery of unidentifiable body parts keeps Anna anchored to the present, and she soon finds crimes of yesterday and today closing in on her. A tangled web that was woven before she arrived threatens her sanity and her life. Cut off from the mainland by miles of water, poor phone service, and sketchy radio contact, Anna must find answers and weather a storm that rivals the hurricanes for which the islands are famous.

It?s fall in the Sierra Mountains, and Anna Pigeon is slinging hash in Yosemite National Park?s historic Ahwahnee Hotel. Four young people, all seasonal park employees, have disappeared, and two weeks of work by crack search-and-rescue teams have failed to turn up a single clue; investigators are unsure as to whether the four went AWOL for reasons of their own or died in the park.

Needing an out-of-park ranger to work undercover, Anna is detailed to dining room duty; but after a week of waiting tables, she knows the missing employees are only the first indication of a sickness threatening the park. Her twenty-something roommates give up their party-girl ways and panic; her new restaurant colleagues regard her with suspicion and fear.

Yet when Anna's life is threatened and her temporary supervisor turns a deaf ear, she follows the scent of evil, taking a solo hike up a snowy trail to the high country, seeking answers. What awaits her is a nightmare of death and greed and perhaps her final adventure

Anna finds herself in a new job ? that of District Ranger in Rocky Mountain?s National Park. Paul Davidson, her long-time love, is a thousand miles away. Dropped into the middle of a mystery that has had the park in a state of turmoil for six weeks, she at first thinks it's solved itself until the voices start , voices without bodies until the small slayings turn into bigger, and even the most obtuse administrator must realize something is desperately wrong in the mountains.

Anna Pigeon, a Ranger with the National Park Service, is newly married but on administrative leave from her job as she recovers from the traumas of the past couple of months. While the physical wounds have healed, the emotional ones are still healing. With her new husband back at work, Anna decides to go and stay with an old friend from the Park Service, Geneva, who works as a singer at the New Orleans Jazz NHP.

She isn't in town long before she crosses paths with a tenant of Geneva's, a creepy guy named Jordan. She discovers what seems to be an attempt to place a curse on her--a gruesomely killed pigeon marked with runic symbols; and begins to slowly find traces of very dark doings in the heart of post-Katrina New Orleans.

Tied up in all of this is Jordan, who is not at all what he appears to be; a fugitive mother accused of killing her husband and daughters in a fire; and faint whispers of unpleasant goings-on in the heart of the slowly recovering city. Now it will take all of Anna's skills learned in the untamed outdoors to navigate the urban jungle in which she finds herself, to uncover the threads that connect these seemingly disparate people, and to rescue the most vulnerable of creatures from the most savage of animals.

Anna Pigeon, a ranger for the U.S. Park Services, sets off on vacation—an autumn canoe trip in the to the Iron Range in upstate Minnesota. With Anna is her friend Heath, a paraplegic; Heath's fifteen-year-old daughter, Elizabeth; Leah, a wealthy designer of outdoor equipment; and her daughter, Katie, who is thirteen. For Heath and Leah, this is a shakedown cruise to test a new cutting edge line of camping equipment.

The equipment, designed by Leah, will make camping and canoeing more accessible to disabled outdoorsmen. On their second night out, Anna goes off on her own for a solo evening float on the Fox River. When she comes back, she finds that four thugs, armed with rifles, pistols, and knives, have taken the two women and their teenaged daughters captive. With limited resources and no access to the outside world, Anna has only two days to rescue them before her friends are either killed or flown out of the country.

Anna Pigeon, in her career as a National Park Service Ranger, has had to deal with all manner of crimes and misdemeanors, but cyber-bullying and stalking is a new one. The target is Elizabeth, the adopted teenage daughter of her friend Heath Jarrod. Elizabeth is driven to despair by the disgusting rumors spreading online and bullying texts.

Until, one day, Heath finds her daughter Elizabeth in the midst of an unsuccessful suicide attempt. And then she calls in the cavalry---her aunt Gwen and her friend Anna Pigeon. While they try to deal with the fragile state of affairs---and find the person behind the harassment---the three adults decide the best thing to do is to remove Elizabeth from the situation.

Since Anna is about to start her new post as Acting Chief Ranger at Acadia National Park in Maine, the three will join her and stay at a house on the cliff of a small island near the park, Boar Island. But the move east doesn't solve the problem. The stalker has followed them east. And Heath (a paraplegic) and Elizabeth aren't alone on the otherwise deserted island. At the same time, Anna has barely arrived at Acadia before a brutal murder is committed by a killer uncomfortably close to her.