When a chance encounter with Theodore Camden, one of the architects of the grand New York apartment house the Dakota, leads to a job offer for Sara Smythe, her world is suddenly awash in possibility - no mean feat for a servant in 1884. The opportunity to move to America. The opportunity to be the female manager of the Dakota. And the opportunity to see more of Theo, who understands Sara like no one else...and is living in the Dakota with his wife and three young children.

In New York City, in April of 1874, a most unusual event took place. A severely abused nine-year-old girl named Mary Ellen Wilson became the first child in America to be rescued from an abusive home. She had been beaten, burned, slashed with scissors, locked in a closet, and had never been outside of her tenement home in over 7 years. Thanks to the concern and dedication of a missionary named Etta Wheeler, the child was finally saved from her cruel captors.

Born in rural Palestine, just before the dawn of the 20th century, Miriam adores her father and is certain his love will protect her, but she soon finds that tradition overrides love. Uprooted by war, Miriam enters a world where the old constraints slip away with thrilling and disastrous results. Miriam's rebellious daughter, Nadia, is thrilled with the opportunity for a modern life that her elite education provides. But when she falls in love with an outsider, the clan reins her back with a shocking finality.

Imprisoned in the Lodz Ghetto, Elsi discovers her mother's desperate attempt to end her pregnancy and comes face-to-face with the impossibility of their situation. Risking her own life, Elsi joins a resistance group to sabotage the regime. Blonde, blue-eyed Matilda is wrenched from her family in Romania and taken to Germany, where her captors attempt to mold her into the perfect Aryan child. Spirited and brave, she must inspire hope in the other stolen children to make her dreams of escape a reality.

Russia, July 17, 1918: Under direct orders from Vladimir Lenin, Bolshevik secret police force Anastasia Romanov, along with the entire imperial family, into a damp basement in Siberia where they face a merciless firing squad. None survives. At least that is what the executioners have always claimed.

Theirs is a world of opposites. The privileged live in sky manors held aloft by a secretive magic known only as the Mysteries. Below, the earthbound poor are forced into factory work to maintain the engine of commerce. Only the wealthy can afford to learn the Mysteries, and they use their knowledge to further lock their hold on society. Cettie Pratt is a waif doomed to the world below, until an admiral attempts to adopt her. But in her new home in the clouds, not everyone treats her as one of the family.

New York City, 1910. Invisible until she’s needed, Jane Prescott has perfected the art of serving as a ladies’ maid to the city’s upper echelons. Then she takes up a position with the Benchley family, dismissed by the city’s elite as "new money". The Benchleys cause further outrage when their daughter Charlotte becomes engaged to notorious playboy Norrie, the son of the eminent Newsome family. But when Norrie is found murdered at a party, Jane discovers she is uniquely positioned - she’s a woman no one sees, but who witnesses everything - and therefore has the tools to solve his murder.

The American Civil War creates enemies of lifelong friends and allies of strangers, but no relationship is more unlikely than that of a passionate Northern Unionist and a loyal Virginia sympathizer. Actress and Northerner Jordan Colfax is hired to spy on behalf of the Union. When she meets Confederate sympathizer Laura St. Clair, whose father is military aide to Jefferson Davis, the perfect opportunity presents itself. But when the truth about Jordan's real intentions is discovered, their love is put to the ultimate test.

When she arrives at the hall, shaken by an unsettling disturbance that occurred during her travels, she is greeted by the two children now in her care, Isabella and Eustace. There is no adult present to represent her mysterious employer, and the children offer no explanation. Later that night in her room, another terrifying experience further reinforces the sense that something is very wrong. From the moment Eliza rises the following morning, her every step seems dogged by a malign presence that lives within Gaudlin's walls.

The real monsters are men. London 1888, and Jack the Ripper is terrorizing the people of the city. Evelyn, a young woman disfigured by her dangerous work in a matchstick factory, with nowhere to go, does not know what to make of her new position as a maid to the Elephant Man in London Hospital. Evelyn wanted to be locked away from the world like he is, shut away from the filth and dangers of the streets. But in Joseph Merrick, the Elephant Man, she finds a gentle kindred who does not recoil from her and who understands her pain.

New York, 1879: After an epic snow storm ravages the city of Albany, Dr. Mary Sutter, a former Civil War surgeon, begins a search for two little girls, the daughters of close friends killed by the storm who have vanished without a trace. Mary's mother and niece Elizabeth, who has been studying violin in Paris, return to Albany upon learning of the girls' disappearance - but Elizabeth has another reason for wanting to come home, one she is not willing to reveal. Despite resistance from the community, who believe the girls to be dead, the family persists in their efforts to find the two.

Charlotte Smith's future is planned to the last detail, and so was her sister's - until Phoebe became a disruption. When their parents commit Phoebe to a notorious asylum, Charlotte knows there's more to the story than madness. Shedding her identity to become an anonymous inmate, "Woman 99", Charlotte uncovers dangerous secrets. Insanity isn't the only reason her fellow inmates were put away - and those in power will do anything to keep the truth, or Charlotte, from getting out.

When a young nurse dies on her watch, Florence Nightingale must uncover the deep-hidden secrets someone will kill to keep buried. It is 1853. Lady of the Lamp Florence Nightingale has just accepted the position of superintendent of the Establishment for Gentlewomen during Temporary Illness in London. She has hardly had time to learn the names of the nurses in her charge when she suddenly finds one of them hanging in the establishment's library. Her name was Nurse Bellamy.

Tavi Malin is born facing the sun, filled with greater magic than any other sun-blessed child. At age 14, her magic awakens, but her uncontrolled power nearly destroys her school, leaving her confidence as shaken as her surroundings. Tavi and her friends train to use their gifts, unaware of the threat developing in a distant city. Dissidents have banded together, and they’re killing to attain gray magic, an ominous new force that breaks the rules of ordinary magic. But to seize true power, the Grays must grow their ranks - and Tavi is a prize worth pursuing.

August 1945. As Stefano, an Italian POW, heads toward home across war-ravaged Germany, he encounters a young child beside his dead mother. Unable to leave him to an unknown fate, Stefano takes the boy with him, finding refuge in a seemingly abandoned house in a secluded woodland. But the house is far from vacant. Stefano wakes at the arrival of its owner, Erich, a former German soldier, who invites the travelers to stay until they can find safe passage home. Stefano cautiously agrees, intrigued by the disarming German, his reclusive neighbor Rosalind, and her traumatized husband.