The Penderwicks are back, but not together. Mr. Penderwick and his new wife Iantha are off to London. Rosalind, the oldest of the four girls, is going to the beach with a friend. Leaving the 3 remaining Penderwicks and their friend Jeffrey, in the care of Aunt Claire at a beach house in Maine. Skye as the OAP (oldest available Penderwick) is charged with keeping the girls safe and together. It should be easy, but when Aunt Claire is injured and Jeffrey doesn't come, Skye starts having doubts. And what was it Rosalind told her about Batty blowing up? Read this one as a family.