A Connecticut Yankee in King Arthur's Court
Mark Twain's nineteenth-century mechanic loose in the sixth century.
349 cryptograms drawn from it, every one by Mark Twain.
How hard they are
105 easy, 138 medium and 106 hard, graded by the model described in our guide to solving cryptograms.
They average 71.5 letters over 19.1 distinct ones, with 4.2 letters appearing exactly once.