The Master Key System
4.21 average rating, · 7.3k ratings
300 reviewsTopreads score 84.4Get this book
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Not currently on a curated list. Its Topreads score of 84.4 combines the rating (4.21) with how many readers it has reached (7.3k ratings).
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Ratings and counts come from a Goodreads-derived snapshot captured 2026-07-07. Numbers change over time and may lag the source. How Topreads handles sources. View this book on Goodreads.
