The Time Machine
H. G. Wells's journey to the year eight hundred and two thousand.
93 cryptograms drawn from it, every one by H. G. Wells.
How hard they are
24 easy, 37 medium and 32 hard, graded by the model described in our guide to solving cryptograms.
They average 71.8 letters over 19.3 distinct ones, with 4.3 letters appearing exactly once.