After awakening from a coma with no memory of who she is, Kat Bird, with her twin sister Jude helping her rebuild her memory block by block by block, making her into the person she was before, soon discovers everything is a lie.

Forging a life together after being abandoned by their parents, half sisters Eva and Iris share decades in and out of the spotlight in golden-era Hollywood and mid-twentieth-century Long Island.

"The Oppenheimer triplets have been reared with every advantage: wealth, education, and the determined attention of at least one of their parents. But neither Harrison (the smart one), Lewyn (the weird one) nor Sally (the girl) suspects the devastating event that first set their family in motion, or understands how fully it has already formed them. Now, on the verge of their departure for college and desperate to escape one another at last, the triplets...

Unwillingly brought together to care for their ailing mother, three sisters who were named after famous Shakespearean characters discover that everything they have been avoiding may prove more worthwhile than expected.

While vacationing with their widowed father in the Berkshire Mountains, four lovable sisters, ages four through twelve, share adventures with a local boy, much to the dismay of his snobbish mother.

"The lives of the three Emery sisters were changed forever when Alex, eleven at the time, found their mother drowned in the bathtub of their home. After their mother’s suicide, the girls’ father shut down emotionally, leaving Alex responsible for caring for Colleen, then eight, and little Riley, just four. Now the girls are grown and navigating different directions. Alex, a nurse, has been traveling in India and grieving her struggle to have a...

Two newly-single sisters, one a divorcée, the other a widow, become roommates with a handsome, gay cupcake-baker as they try to return to the dating world of lower Manhattan.

After her sister Elara forms an unbreakable bond with an enemy dragon, seventeen-year-old Faron, who once wielded the magic of the gods to save her island from those same dragon-riding colonizers, must find a way to save her sister and the fate of their world in the face of impossible odds.

"Lupton enters the highly charged ring where the best psychological detective writers spar... Like Kate Atkinson, Patricia Highsmith and Ruth Rendell… Both tear-jerking and spine-tingling, Sister provides an adrenaline rush that could cause a chill on the sunniest afternoon." —The New York Times Book Review
 
When her mom calls to tell her that Tess, her younger sister, is missing,

...

Thirteen-year-old Phoebe recalls her younger brother Mick and his death in a bicycle accident.