The cousins

"Milly, Aubrey, and Jonah Story are cousins, but they barely know each another, and they've never even met their grandmother. Rich and reclusive, she disinherited their parents before they were born. So when they each receive a letter inviting them to work at her island resort for the summer, they're surprised . . . and curious. Their parents are all clear on one point--not going is not an option. This could be the opportunity to get back into Gr...