Thirteen-year-old fraternal twins Dallas and Florida have grown up in a terrible orphanage but their lives change forever when an eccentric but sweet older couple invites them each on an adventure, beginning in an almost magical place called Ruby Holler.

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.

On a cross-country vacation with their parents, twins Coke and Pepsi, soon to be thirteen, fend off strange assassins as they try to come to terms with their being part of a top-secret government organization known as The Genius Files.

Tandy Angel is, along with her brothers, a suspect in their parents' murder but having grown up under Malcolm and Maud Angel's perfectionist demands, Tandy decides she must clear the family name no matter what.

Eleven-year-old twins Miles and Beckett Fowl enjoy adventure and mayhem while helping a troll escape nefarious forces that want his magic.-- One week after their eleventh birthday, the Fowl twins-- scientist Myles, and Beckett, the force of nature-- befriend a troll who has clawed his way through the earth's crust to the surface. Unfortunately the troll is being chased by a nefarious nobleman and an interrogating nun, who both need the magical creature...

The first book in Chris Colfer's #1 New York Times bestselling series The Land of Stories about two siblings who fall into a fairy-tale world!
Alex and Conner Bailey's world is about to change forever, in this fast-paced adventure that uniquely combines our modern day world with the enchanting realm of classic fairy tales.
The Land of Stories tells the tale of twins Alex and Conner. Through the mysterious powers...

Seventeen-year-old Sutton Mercer watches from the afterlife as her long-lost twin sister, Emma Paxton, continues to pretend to be her in order to identify Sutton's killer.

While working at pleasant but mundane summer jobs in San Francisco, fifteen-year-old twins Sophie and Josh suddenly find themselves caught up in the deadly, centuries-old struggle between rival alchemists Nicholas Flamel and John Dee over the possession of an ancient and powerful book holding the secret formulas for alchemy and everlasting life.

When professional typist Letitia Glover is desperate to learn more about the fate of her twin sister Flossie, Enola enlists the help of her brother Sherlock and her friend Tewky to investigate Flossie's husband, the sudden death of his first wife, and the mysterious appearance of a black barouche.

After smuggling herself onto the RMS Titanic, British-Chinese teenager Valora Luck reunites with her twin brother and tries to convince him that their acrobatic training could be their ticket to a better life. Southampton, 1912. British-Chinese Valora Luck smuggles herself aboard the Titanic with two goals: to reunite with her twin brother Jamie, and to convince a part-owner of the Ringling Brothers Circus to take the twins on as acrobats. Val talks...