What if you had a long-lost twin? What if she disappeared the day you were supposed to meet? How far would you go to find out what happened?--Jacket.

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.

While his father works two jobs, seventh-grader Efren Nava must take care of his twin siblings, kindergartners Max and Mia, after their mother is deported to Mexico. Includes glossary of Spanish words.

"For almost two years, Lord Teddy Bleedham-Drye, the Duke of Scilly, has been plotting revenge against the Fowl Twins, who humiliated him in Book One. Teddy plans to give them exactly what they deserve: permanent death. He threatens Myles with his weaponized jet and Beckett and Specialist Lazuli succeed in disarming the aircraft and causing an accident that kills the duke. But does it really? Ghosts, clones, and fairy magic come to play in this ultimate...

When their two worlds collide in seventh grade, fraternal twins and opposites Owen and Russell find themselves in direct competition at school, on the court, and at home.

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.

A boy who may be part changeling, twins involved in a bizarre secret experiment, and a clurichaun in a red tracksuit try to save the world from an evil cereal company whose ultimate goal is world domination.

"Twelve-year-old Rowan is next in line to be Queen; her twin brother, Rhydd, to be Royal Monster Hunter. Rowan would give anything to switch places, but the rule is, the oldest child is next in line, even if she is only older by two minutes. She resigns herself to admiring her royal monster hunter aunt's official sword and having tea with dignitaries with her mother, the queen. But a tragic event breaks up longstanding rules, and now Rowan finds herself...

Alex and his friends from Artimé are stranded on a newly-discovered island, and they are not alone, while in Quill, his twin Aaron's power base grows as he joins with an unlikely ally in a risky plan to finally conquer Artimé.