Jane Eyre
Charlotte Bronte's governess, and the house with a locked attic.
417 cryptograms drawn from it, every one by Charlotte Brontë.
How hard they are
133 easy, 177 medium and 107 hard, graded by the model described in our guide to solving cryptograms.
They average 74.5 letters over 19.4 distinct ones, with 4 letters appearing exactly once.