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Product Review

  • Become an expert in codes, ciphers, and the mysteries of the universe.
  • Perfect for those who love riddles, logic puzzles, or brain teasers. Great practice for future escape room game hijinx.
  • Beautifully illustrated puzzle book with 40+ Theorems, over 200 pages in length. Three hints and a full solution per Theorem in the back of the book.
  • Recommended for ages 13 and up, or 10 and up for young prodigies.
  • Months of neuron-growing entertainment on your own or with a partner or two in crime.