The evil Muns tries to convert Abby into helping him change the history of the world while her and Derick's grandfather asks Derick to finish a c

Feeling inferior to her talented twin brother, teenaged Isabel is transported to a parallel world that resembles the Italian Renaissance city-sta

Eleven-year-old twins Jason and Julia, along with their friend Rick, find themselves in eighteenth-century Venice, where Dedalus's invenvtions ar

Twins Truman and Camille, spending winter break with their paternal grandmother, follow a secret passageway to the Breath World, where all creatu

When twins Abby and Derick start junior high at the prestigious academy their grandfather founded, Cragbridge Hall, they discover firsthand the d

"When Felix gets a crush on his friend Lily, who was adopted from China as a baby, he decides to try to take her back in time to learn more about

An old coin in The Treasure Chest transports twins Felix and Maisie to the island of St. Croix in 1772, where they meet seventeen-year-old Alexan

Having been hired by a mysterious corporation called Gippart, twelve-year-old Josh--along with two friends and the ghost of his dead twin sister-

"Twins Atticus and Esmeralda Fetch are the best pet finders in Thorns Hollow -- a town where people have a lot of pets, and those pets often get

Eleven-year-old twins Jason and Julia, along with their friend Rick, match wits with Peter Dedalus, the elusive inventor who created Kilmore Cove

Twins Esmeralda and Atticus Fetch are the best pet finders in Thorns Hollow, a town where people have a lot of pets, and those pets often get los

Jonah was able to save all of time from collapsing but in doing so gained a twin brother, Jordan, who must learn what has happened and do his own