Why did great-grandfather, the sea captain, leave a trail of clues, painstakingly concealed in cryptograms, to the location of the gold coins--profits of the Middle Passage--which he buried in shame during the Civil War? It beats us, but that's the only mystery in this tale of three youngsters tracking down treasure on a Vermont farm. There's a lot of looking but not much action, a lot of hope but not much life. In the end, perseverance pays off--with the aid of a visiting cryptographer. It couldn't have happened to a duller bunch!