With two mysteries to solve, Frank and Joe must climb aboard their iceboat the Sea Gull to reach Cabin Island, where a belligerent stranger orders them off. Sabotage to the boat, danger to themselves, and a ghostly prowler do not daunt the Hardy boys in their search for Johnny Jefferson and for clues to stolen antique medals. How the teenage investigators outwit a ruthless foe and succeed in solving both mysteries makes for mounting suspense in this brisk-paced adventure.
-->Franklin W. Dixon is the author of the ever-popular The Hardy Boys (All New) Undercover Brothers and The Hardy Boys Secret Files series.
-->Scott Burroughs started his career at Disney and has illustrated everything from children's books to advertisements and editorials. He is also the published author of several children's books. He lives in Denver, Colorado, with his wife and sons.