The Whispering Lighthouse

When eleven-year-old Mia Carter arrives in the seaside town of Pebble Cove for the summer, she expects sandy beaches, salty wind, and not much else. But on her very first visit to the old crooked lighthouse - now a museum full of brass lamps, glass cases, and gold coins from a long-ago shipwreck - Mia spots something the grown-ups have missed: a tiny fresh scratch on the wooden frame of a locked case.
Soon items begin to vanish from the museum overnight, even though every door and case is still locked. With her new friends Theo, an aspiring detective who carries his notebook everywhere, and Lily, a brave future marine biologist with very serious eyebrows, Mia forms the Seaside Sleuths. Together they follow clues through hidden tide pools, secret cliffside tunnels, and a mysterious old map propped in an antiques shop window.
What they uncover is a story almost two hundred years old - and a mystery that did not end at Pebble Cove. A warm, funny, gentle mystery for young readers ages 7 and up. The first book in a brand-new series.