6073165
9780805083408
Xena and Xander Holmes, an American brother and sister living in London for a year, discover that Sherlock Holmes was their great-great-great grandfather when they are inducted into the Society for the Preservation of Famous Detectives and given his unsolved casebook, from which they attempt to solve the case of a famous missing painting.Barrett, Tracy is the author of 'The Hundred-Year-Old Secret', published 2008 under ISBN 9780805083408 and ISBN 0805083405.
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