Other editions of book The Crimebusters Investigate

Five sinister suspects . . . baffling evidence . . . and a criminal mastermind whose activities threaten to tear apart the old city of Allegro. All this awaits Kaz Smiley and her friend, Mat, when they set out to investigate the theft of a mysterious jewel known as the Traitor's Knot.

The reader must solve an assortmant of puzzles to reveal the solution when Kaz Smiley, while working for her aunt's cleaning agency, Grimebusters, mistakenly gets called to investigate the theft of an antique medallion from opera star Constanza Smith.

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