Master Theorem Book of Puzzles

Do you love logic problems? Are you crazy for crosswords? Do you get caught up in escape rooms? Then these mind-bending books will leave you pleasantly perplexed. Created by a mysterious figure known only as "M," each captivating collection is a glimpse into minds of The Master Theorem, a secret society of geniuses who indulged themselves in cyphers, puzzles, and code-breaking. Are you up to the challenge?

• Choose the Original version, with 40 unique brain teasers (a.k.a. theorems) or the Elite edition that packs 40+ puzzles for intermediate to expert-level adventurers.
• Designed to look like mystical tomes, both compilations are covered in intricate symbols, and each theorem is illustrated with full-color drawings and photos that will help lead you to the solution.
• The theorems also include hints (written in a simple code so that you don't accidentally peek), with solutions in the back.
• "M" estimates that a clever teen or adult might need weeks to complete the first anthology and months to conquer the second.
• 213 pages each.
• Made in Michigan.