The Sinister-Winterbottoms, twins Alexander and Theo and their older sister Wil, find themselves at a mysterious summer camp where they meet other families whose parents are missing.

Abigail and John, the Templeton twins, and their dog Cassie, foil a pair of inept kidnappers intent on stealing one of their father's newest inventions.

As Tanner, Gwen, and their Beasts Firepos and Gulkien continue their search for the pieces of the Mask of Death, they face betrayal from Gwen's twin brother Geffen, and discover a new Beast-Rider pair--Castor and Nera.

For twins Carlos and Carmen, Uncle Alex's big green surprise turns into the best backyard camping experience ever.

When their town becomes the headquarters of the evil Josae B. Liano's plot to destroy the human race, it is up to the red-headed Del Pino twins, athletic martial artist Efe and her musical and scientific genius brother, Eme, to become heroes.

When twins Sam and Ilsa throw one last party before they graduate from high school, they add a twist, each sibling gets to invite three guests and the other won't know until they show up.

Cherishing everything about being identical twins, Arlene and Ilene are astonished when they discover that they do not share everything in like manner, from ice cream preferences to favorite nail polish colors.

Fourteen-year-old twin basketball stars Josh and Jordan wrestle with highs and lows on and off the court as their father ignores his declining health.

Cash, Fitch, and Bird Thomas are three siblings in seventh grade together in Park, Delaware. In 1986, as the country waits expectantly for the launch of the Space Shuttle Challenger, they each struggle with their own personal anxieties. Cash, who loves basketball but has a newly broken wrist, is in danger of failing seventh grade for the second time. Fitch spends every afternoon playing Major Havoc at the arcade on Main. And Bird, his twelve-year-old...

A humorous oral history that chronicles twelve-year-old twins Reese and Claudia Tapper's heated competition to become sixth grade class president of their New York City private school, through text messages, photographs, screenshots, and more.