The Call of the Wild
Jack London's dog Buck, from a California ranch to the Klondike.
58 cryptograms drawn from it, every one by Jack London.
How hard they are
9 easy, 29 medium and 20 hard, graded by the model described in our guide to solving cryptograms.
They average 71.2 letters over 18.7 distinct ones, with 4.3 letters appearing exactly once.
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