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.

Eleven-year-old Miri Gill feels left out in her family, which has two sets of twins and her, until she travels back in time to 1935 and discovers Molly, her own lost twin, and brings her back to the present day.

Second-graders Arlene and Ilene Kelly are twins, identical twins to be exact, and they love being a pair. They love to dress alike, they have identical pet ferrets, and they do everything together. But being a twin is not always easy. And when Arlene gets sick and has to visit the hospital, the twins each find out what it's like to be one instead of two. But whether they're together or apart, Arlene and Ilene know they're lucky to have each other....

In Brooklyn, New York, twelve-year-old dog-walker Maggie, aided by her twin brother Finn and best friend Lucy, investigates someone she believes is stealing pets.

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.

Devious twins Edgar and Ellen scheme to thwart the mayor's tourism initiative, which, if successful, would destroy the town junkyard-- the twins' favorite playground, foraging spot, and home to their beloved carniverous plant, Berenice.

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.

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.

"Oddonis may be the son of Zeus, but he's a little bit odd for a god. He's so odd, in fact, he's not sure if he has any powers at all. And if that isn't enough, his twin brother Adonis is the most popular, most athletic, and most otherworldly handsome god of them all. Oddonis's future at Mount Olympus Middle isn't looking bright, especially when he makes the last-minute decision to run against Adonis to be class president. With the help of his friends...