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.

Having felt deprived all her life of schooling, friends, mother, and even her name by her twin sister, Louise finally begins to find her identity.

When their thieving parents steal a rich and famous dog, twins Jillian and Billy, who have grown tired of being crooks, must find a way to get Poochie Smoochie back to her owner. Includes activities.

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.

Tired of being pressured to help commit crimes and yearning for a more normal life, twins Jillian and Billy band together to do good deeds while their parents kidnap a monkey from the zoo, hoping to teach it to steal. Includes activities.

Bradley and Brian need help from Nate and Lucy after a hypnotist turns their mother into a duck but does not quite get her changed back.

"Following clues left by their missing father, twelve-year-old twins Bickford and Rebecca Kidd sail from the Caribbean to New York City with their siblings to finish the dangerous quest of their world-famous treasure-hunting parents"--Provided by publisher.

"Pesah has lived with leprosy for years, and the twins have spent most of that time working on a cure. Then Pesah has a vision: The Angel of Death will come for him on Rosh Hashanah, just one month away. So Ziva takes her brother and runs away to find doctors who can cure him. But when they meet and accidentally free a half-demon boy, he suggests paying his debt by leading them to the fabled city of Luz, where no one ever dies—the one place Pesah...

Seven-year-olds Bradley, Brian, Nate, and Lucy make observations and gather clues that convince them that their older siblings, cousin, and animals have been captured by hungry space aliens.

To Elodee, eleven, things seem a little too perfect in Eventown when she moves there with her parents and identical twin, Naomi, especially since forgetting the past is so highly valued.