Returning home from a trip to Paris, Boston medical examiner Maura Isles confronts a nightmarish scene. Police cruisers line her street and slumped in a car at the end of Maura's driveway is a dead woman, her head bloodied by a gunshot wound. Cops and neighbors gape at her as she approaches. Only when Maura looks at the victim does she understand why everyone is so shocked by her arrival. The dead woman looks exactly like Maura. Within a week, the DNA lab delivers a stunning verdict.

Tranquility, Maine seems like the perfect place for Dr. Claire Elliot to shelter her adolescent son from the distractions of the big city - until a deadly epidemic threatens to destroy everyone she loves.

In Harvest, the book that introduced us to Tess Gerritsen's unique blend of medical expertise, harrowing suspense, and brilliantly crafted plot twists, the dark side of medical research is exposed. Harvest vividly portrays a young woman doctor challenging a world where medical miracles and greed fuel a lethal conspiracy - and the bright lights of the O.R. conceal the ultimate corruption of genius.

Dr. Toby Harper works the night shift in an emergency room. She spends her daytime hours alone with her mother who suffers from Alzheimer's disease. When elderly Alzheimer's patients from the same retirement home start dying mysteriously, Toby is the only one suspicious enough to investigate. As a result she finds herself, her mother, and her own sanity at risk.

She's young. She's beautiful. And her corpse, laid out in the office of Boston medical examiner Cat Novak, betrays no secrets - except for a notebook clutched in one stiff hand, seven numbers scrawled inside. When a second victim is discovered, Cat begins to fear that a serial killer is stalking the city streets: a shadowy madman without mercy or apparent motive. The police are sceptical. The mayor won't listen. And Cat's chief suspect is one of the city's most prominent citizens.

Emma Watson, a brilliant research physician, has been training for years for the mission of a lifetime: to study living beings in space. Jack McCallum, Emma's estranged husband, has shared her dream of space travel, but a medical condition has grounded and embittered him. He must watch from the sidelines as his wife prepares for her first mission to the international Space Station.

Andrea Oliver knows everything about her mother, Laura. She knows she's always lived in the small town of Belle Isle; she knows she’s a pillar of the community; she knows she's never kept a secret in her life. Then, one day, a trip to the mall explodes into a shocking act of violence, and Andy suddenly sees a completely different side to Laura. Hours later, Laura is in hospital, her face splashed over the newspapers. But the danger has only just begun. Now, Andy must go on a desperate race to uncover the secrets of her mother's past. Unless she can, there may be no future for either of them....

The sleepy town of Heartsdale, Georgia, is jolted into panic when Sara Linton, paediatrician and medical examiner, finds Sibyl Adams dead in the local diner. As well as being viciously raped, Sibyl has been cut: two deep knife wounds form a lethal cross over her stomach. But it's only once Sara starts to perform the post-mortem that the full extent of the killer's brutality becomes clear

DI Nikki Galena: A police detective with nothing left to lose, she's seen a girl die in her arms, and her daughter will never leave the hospital again. She's gotten tough on the criminals she believes did this to her. Too tough. And now she's been given one final warning: make it work with her new sergeant, DS Joseph Easter, or she's out.

Detective D. D. Warren and Flora Dane are in a race against time to save a young girl's life - or bring her to justice. A family home has become a crime scene. Five people are involved: four of them have been savagely murdered; one - a 16-year-old girl - is missing. Was she lucky to have escaped? Or is her absence evidence of something sinister?

Dublin, Ireland and Richmond, Virginia: separated by thousands of miles - linked by murder. Five dismembered, beheaded bodies were found in Ireland five years ago - now four have been discovered in the States. But the tenth corpse in Virginia is different. A copy-cat killing. Ghoulish, perhaps, but not unusual. Then abject terror grips Scarpetta and her colleagues when the next body is found with a clear and horrifying message: the killer is armed with the most lethal weapon on earth - smallpox.

When forensic pathologist Lucy Trask stumbles across a mutilated body with its face so badly damaged it is unrecognisable by the chess tables in her local Baltimore park, her sole concern is that it might be her old school teacher Mr Pugh. When the corpse is identified, Lucy is shocked to discover that the victim is actually another man from her past. Who killed him and why his skin is burnt with the number '1' is unclear, but it's evident that someone is demanding Lucy's attention.

A body is discovered deep in a cave beneath the Yorkshire Dales. Leading the investigation into the mysterious death are experienced DCI Jim Oldroyd and his partner DS Carter, a newcomer from London. The deceased is Dave Atkins, well known throughout the village but not well liked. While there is no shortage of suspects, the details of the crime leave Oldroyd and Carter stumped. How did Atkins’s body end up in such a remote section of the cave? When someone with vital information turns up dead, it becomes clear that whoever is behind the murders will stop at nothing to conceal their tracks.

Melissa Craig is absolutely delighted with her new life in an old crumbling cottage, spending her days pruning the primroses and getting to know Binkie, the ginger cat next door. She only wishes she had made the move to the countryside sooner. But when a knock at the door brings news of a shocking discovery, she suddenly finds herself thrown in to the middle of a baffling mystery: the bones of a young woman have been found in the woods just behind her new home. Perhaps the little village of Upper Bembury is not as idyllic as it first seemed? Strange phone calls in the night convince Melissa that the police are barking up completely the wrong tree, so she can’t resist doing a little digging of her own. From the bingo hall to the beauty salon and beyond, her search ruffles a few feathers and uncovers many of the village’s most scandalous secrets, but gets her no closer to finding the culprit.

Desperate Mary Grace Winters knew the only way to save herself and her child from her abusive husband was to stage their deaths. Now all that remains of her former life is at the bottom of a lake. As Caroline Stewart, Mary Grace has almost forgotten the nightmare she left behind nine years ago. Slowly she has learned to believe that her new life, and new identity, is here to stay. Then her husband uncovers her hidden trail. Step by step he's closing in on her and everyone she loves.