Avoiding relationships to protect her sensitive heart, plus-sized Molly supports her once-cynical twin, Cassie, when the latter has her own bout of lovesickness, a situation that is complicated by sibling dynamics and an unexpected romantic triangle.

When Mara's twin brother Owen is accused of rape by her friend Hannah, Mara is forced to confront her feelings about her family, her sense of right and wrong, a trauma from her past, and the future with her girlfriend, Charlie.

After sixteen-year-old Ivy's twin sister, Iris, moves in with her and their father, Ivy learns that Iris is trying to push her out of her own life--and may be responsible for their mother's death.

"When Stephen moves to the small, midwestern town where his father grew up, he quickly falls in with punk girl Cara and her charismatic twin brother, Devon. But the town has a dark secret, and the twins are caught in the middle of it"--

"Seventeen-year-old Leah MacKenzie is heartless. An artificial heart in a backpack is keeping her alive. However, this route only offers her a few years. And with her rare blood type, a transplant isn't likely. Living like you are dying isn't all it's cracked up to be. But when a heart becomes available, she's given a second chance at life. Except Leah discovers who the donor was -- a boy from her school -- and they're saying he killed himself. Plagued...

"Seventeen-year-old Ash Larkin finds out her family is involved in a centuries-old saga of love and murder, alchemy and immortality when she follows her mother to an isolated settlement in the cornfields of Kansas"--

Spanning 40 years, this is the story of turbulent Tom Wingo, his gifted and troubled twin sister Savannah, and the dark and violent past of the extraordinary family into which they were born.

No one on the island of By-the-Sea would call the Fernweh women what they are, but if you need the odd bit of help, such as a sleeping aid concocted by moonlight, they are the ones to ask. Georgina Fernweh waits impatiently for the tingle of magic in her fingers--magic that has touched every woman in her family, including her twin sister, Mary. But with her eighteenth birthday looming at the end of her last summer on the island, Georgina fears her...

Cath is a Simon Snow fan. Okay, the whole world is a Simon Snow fan, but for Cath, being a fan is her life--and she's really good at it. She and her twin sister, Wren, immersed themselves in the series when they were kids; it's what got them through their mother leaving. Her sister has grown away from fandom, but Cath can't let go. Now that they're going to college, Wren has told her she doesn't want to be roommates. Cath is on her own, completely...

Eighteen-year-old twins Becca and Cassie, now trained, fearless fighters, hold the key to defeating the despotic United regime and freeing the people of the former United States, but at what cost?