"Detective and mystery stories." . . "Thieves." . . "You are cordially invited to attend the grand opening of Sinclair's Department Store. Enter a world of bonbons, hats, perfumes and mysteries around every corner. Wonder at the daring theft of the priceless Clockwork Sparrow! Tremble as the most dastardly criminals in London enact their wicked plans! Gasp as our bold heroines, Miss Sophie Taylor and Miss Lilian Rose, break codes, devour iced buns and vow to bring the villains to justice . . . A splendid adventure awaits you."@en . "Juvenile works"@en . "Fiction"@en . . . "Clockwork sparrow"@en . . "Mystery of the clockwork sparrow"@en . . . . . "Thieves Juvenile fiction." . . "Young adult fiction." . . . .