In the near future, the conjoined Armstrong twins, under the guise of the Armstrong Fancy Gifts Corporation, plot to create their own version of utopia using nanobots, while a guerilla group known as BZRK develops a DNA-based biot that can stop bots, but at risk of the host's brain.

"Jake and Lily are twins and have always felt the same--like two halves of one person--but the year they turn eleven and Jake begins hanging out with Bump Stubbins, everything changes"--

When Emma Paxton steps into the life of her long-lost twin Sutton to solve her murder, she finds new suspects at every turn, while Sutton looks on from her afterlife.

Seventeen-year-old Emma Paxton steps into the life of her long-lost twin Sutton to solve her murder, while Sutton looks on from her afterlife.

Siblings Sam and Ilsa Kehlmann have spent most of their high school years throwing parties for their friends--and now they've prepared their final blowout, just before graduation. The rules are simple: each twin gets to invite three guests, and the other twin doesn't know who's coming until the partiers show up at the door. With Sam and Ilsa, the sibling revelry is always tempered with a large dose of sibling rivalry, and tonight is no exception....

"It's 1963, and things are changing for Jezebel Turner. Her beloved grandmother has just passed away. The local police deputy won't stop harassing her family. With school integration arriving in South Carolina, Jez and her twin brother, Jay, are about to begin the school year with a bunch of new kids. But the biggest change comes when Jez and Jay turn eleven and their uncle, Doc, tells them he's going to train them in rootwork. Jez and Jay have always...

After Mallory is kidnapped at her fencing meet, Jared and Simon search for her near an old quarry and find themselves amidst dwarves and goblins.

In 2036 New Jersey, when teens are expected to become fanatically religious wives and mothers or high-priced Surrogettes for couples made infertile by a widespread virus, sixteen-year-old identical twins Melody and Harmony find in one another the courage to believe they have choices.

Arriving in Mexico for their parents' wedding, stepsisters Raquel, Lucinda, and Juliette must show their disapproving Tia Enriqueta that their parents are meant to be together, but when their scheming leads to doubt, they wonder if they can really trust each other at all.

"Rivka, one of the magical elite, embarks on a quest to find her twin brother, Arik, who was sent away when he failed to develop his own magical abilities"--