From the acclaimed author of Just Add Magic--now a hit streaming original series--comes a story of two sisters, one summer vacation, and one big mystery for them to solve. Stella and Josie live for their summers at the boardwalk--each one a carbon copy of the last. Josie lives in Australia most of the year; her half-sister, Stella, lives in New Jersey. But every year, they come together for a beach vacation with their dad, and...