Cain’s jawbone by Torquemada Edward Powys Mathers

Cain’s Jawbone is a unique and fiendishly complex literary puzzle written by Torquemada (the pseudonym of Edward Powys Mathers), a British crossword compiler and poet. Originally published in 1934, the book is a murder mystery consisting of 100 out-of-order pages that the reader must rearrange into the correct sequence to solve six interconnected murders.