Black Duck — Janet Taylor Lisle

It is spring 1929, and Prohibition is in full swing. So when Ruben and Jeddy find a dead body washed up on the shore of their small coastal Rhode Island town, they are sure it has something to do with smuggling liquor. Soon the boys, along with Jeddy's strongwilled sister, Marina, are drawn in, suspected by rival bootlegging gangs of taking something crucial off the dead man. Then Ruben meets the daring captain of the Black Duck, the most elusive smuggling craft of them all, and it isn't long before he's caught in a war between two of the most dangerous prohibition gangs.

"Riveting mystery and nonstop adventure." --School Library Journal