At the age of 14, Amy Fern had not read a single detective story. But she loved romantic stories. And, of course, she herself was in love. In Finn. For his sake, she even began taking lessons from Rubinia Radcliffe, a famous pianist with a terrible character, whose best student was Finn. Amy was just trying to find a reason to talk to him... when a tragic incident happened on the beach in Smuggler's Cove. Rubinia Radcliffe has been found dead! And Amy’s grandmother, Clarissa, who loves mysteries and detective stories, immediately decided that this was murder. What terrible news! But even more terrible is that Finn, who had just discovered the body, had both motive and opportunity. It happened, Amy knows about it. She doesn't believe for a second that the guy she cares about could commit a crime. To prove his innocence, the girl begins her own investigation...