The Dumnonian Hoard: Rosenberg Twins Adventure #1

Fourteen year old Sarah Rosenberg and her twin brother Joshua are spending the summer in France on an archaeological expedition with their Uncle Marty. However, what begins as a relaxing and fun-filled vacation quickly becomes a dangerous and harrowing adventure when the twins cross paths with a pair of ruthless antique smugglers. Will the twins find the treasure they seek before it's too late?