Title: Beyond Montague Island: Even More Mysteries and Logic Puzzles, Author: R. Wayne Schmittberger
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Title: Colossal Kakuro: 72 Titanically Tricky Puzzles, Author: Conceptis Puzzles
Title: Escape Room Logic Puzzles, Author: Francis Heaney
Title: Hard as a Rock Crosswords: Quite Hard Indeed, Author: Stanley Newman
Title: Large Print Acrostics, Author: Francis Heaney
Title: Montague Island Memoirs: All-New Mysteries and Logic Puzzles, Author: R. Wayne Schmittberger
Title: Montague Island Mysteries and Other Logic Puzzles, Author: R. Wayne Schmittberger
Title: Return to Montague Island: More Mysteries and Logic Puzzles, Author: R. Wayne Schmittberger