As Maisy takes her friends on a train ride to the country, they go up a hill, down into a valley, and through a tunnel.

After being acquitted of murder, seventeen-year-old David goes to stay with relatives in Cambridge, Massachusetts, where he finds himself forced to face his past as he learns more about his strange young cousin Lily.

Mary McScary loves to scare people, but nothing she thinks up seems to bother her cousin, Harry McScary--but Mary will not give up trying.

After receiving an invitation to spend the summer with their estranged grandmother, the Story cousins arrive at her house only to discover that she is not there, and the longer they stay on the island, the more they realize their mysterious family history has some deadly secrets.

Fone Bone, Phoney Bone, and Smiley Bone are run out of their home, Boneville, and become separated in the wilds, but better fortune begins when the three cousins reunite at a farmstead in a deep forested valley, where Fone meets a young girl named Thorn and her spirited grandmother, Gran'ma Ben. But little do the Bones know, there are dark forces conspiring against them, and their adventures are only just beginning!

Nine-year-old cousins Lily, Rosie, and Tess are sad when it is time to leave Aunt Lucy, so they plan a party and get a special surprise to look forward to in the near future.

A visit to a cousin's house turns out not to be so bad after all.

In the early 1900s, two cousins leave their Russian shtetl with the rest of their family to come to America, hopeful that they will all pass the dreaded inspection at Ellis Island.

When Maisy and her friends visit London, they go on a whirlwind tour of the city on a double-decker bus, a water taxi, and an underground train.

Walter's favorite cousin is coming to visit, but Iris is disappointed when Howie does not turn out to be so great--or friendly--after all.