The Hunting of the Snark
The Hunting of the Snark is a nonsense poem written by English writer Lewis Carroll between 1874 and 1876. The plot follows a crew of ten trying to hunt the Snark, which may turn out to be a highly dangerous Boojum. This original illustration by Henry Holiday accompanies the verse:

    "But oh, beamish nephew, beware of the day,
        If your Snark be a Boojum! For then
    You will softly and suddenly vanish away,
        And never be met with again!"

Illustration credit: Henry Holiday; restored by Adam Cuerden