When summer comes around, it's off to the beach for Rosalind...and off to Maine with Aunt Claire for the rest of the Penderwick girls, as well as their old friend, Jeffrey. That leaves Skye as OAP (oldest available Penderwick) - a terrifying notion for all, but for Skye especially. Things look good as they settle into their cozy cottage, with a rocky shore, enthusiastic seagulls, a just-right corner store, and a charming next-door neighbor. But can Skye hold it together long enough to figure out Rosalind's directions about not letting Batty explode?

Nine years, five older siblings, a few beloved dogs, and an endless array of adventures - these are the things that have shaped Lydia's journey since fans first met her in The Penderwicks in Spring. Now, it's summertime, and 11-year-old Lydia is dancing at the bus stop, waiting for big sister, Batty, to get home from college. This is a very important dance and a very important wait, because the two youngest sisters are about to arrive home to find out that the Penderwicks will all be returning to Arundel this summer, the place where it all began.

The Penderwick Sisters are home on Gardam Street and ready for an adventure! But the adventure they get isn't quite what they had in mind. Mr. Penderwick's sister has decided it's time for him to start dating, and the girls know that can only mean one thing: disaster. Enter the Save-Daddy Plan, a plot so brilliant, so bold, so funny that only the Penderwick girls could have come up with it. It's high jinks, big laughs, and loads of family warmth as the Penderwicks triumphantly return.

This summer the Penderwick sisters have a wonderful surprise: a holiday on the grounds of a beautiful estate called Arundel. Soon they are busy discovering the summertime magic of Arundel's sprawling gardens, treasure-filled attic, tame rabbits, and the cook who makes the best gingerbread in Massachusetts. But the best discovery of all is Jeffrey Tifton, son of Arundel's owner, who quickly proves to be the perfect companion for their adventures.

When Stella and her younger brother, Tom, move to their new London home, they become mystified by the disappearances of Harry, their elderly neighbor's small dog. Where does he go? And why does he keep reappearing wet-through? Their quest to solve the riddle over the summer holidays leads to a boat buried under a grassy mound, and a tunnel that takes them to a secret lake.