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The seaside village of Smugglers Cove is proving to be anything but quiet for the Mystery Kids as they encounter yet another mystery while exploring Brackness Castle. This ruined fortress sits on the outskirts of the village and, as they soon discover, holds more secrets than they could ever imagine.
Who is hiding in the dungeons? What is in the bag? Where does the secret tunnel lead to?
Set in 1950's Britain, this adventure story will suit anyone who enjoys Nancy Drew, the Hardy Boys or the Famous Five.