Not up to her standard -- or perhaps I like her girls' books better than her boys' books. This time the central character is a Vermont boy who runs away (with his sister's connivance) from an unhappy apprenticeship in a harness shop. The lever that precipitates his departure is news of white boy slaves to the pirates of the Barbary Coast and the possibility that one may be his brother. From this one would expect an exciting adventure yarn of the search for the missing youth; instead it deals with the misadventures of the runaway until an absentee uncle guarantees his safety and institutes a hunt for the brother. Too much shifting of emphasis. Value of the period background is negligible as little is done to place the period or the setting. A disappointing book.