The Passport Mysteries book series by multiple authors includes books Secrets of the Mayan Ruins (Passport to Mystery Series), The Mystery of the Sea Dog's Treasures: By P.J. Stray (Passport Mysteries Series , No 2), Lost in Merlin's Castle (Passport Mysteries Series , No 3), and several more. See the complete Passport Mysteries series book list in order, box sets or omnibus editions, and companion titles.
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