Cain's Jawbone: The World's Most Fiendishly Difficult Puzzle Game: Boxed Card Edition

The most fiendishly difficult literary puzzle ever written, presented here as cards for you to shuffle and sort into the only correct order, revealing the solution!

Six murders. Millions of possible combinations . . . all in one box . . .

Can you solve Torquemada's murder mystery?

In 1934, the Observer's cryptic crossword compiler, Edward Powys Mathers (aka Torquemada), released a novel that was simultaneously a murder mystery and the most fiendishly difficult literary puzzle ever written.

Presented here as cards for you to shuffle and--through logic--sort into the only correct order, this boxed novel is the perfect gift for the bravest puzzlers, ready for you to rearrange and solve.

Only three puzzlers have ever solved the mystery of Cain's Jawbone: do you have what it takes to join their ranks?

Please note: this puzzle is extremely difficult and not for the faint-hearted.