The Sea Raiders by H. G. Wells - Along the quiet Devon coast, something stirs beneath the waves—something with tentacles, teeth, and a hunger for flesh. When it rises, the seaside will never be the same... 

Until the extraordinary affair at Sidmouth, the peculiar species Haploteuthis ferox was known to science only generically, on the strength of a half-digested tentacle obtained near the Azores, and a decaying body pecked by birds and nibbled by fish, found early in 1896 by Mr. Jennings, near Land's End.

In no department of zoological science, indeed, are we quite so much in the dark as with regard to the deep-sea cephalopods. A mere accident, for instance, it was that led to the Prince of Monaco's discovery of nearly a dozen new forms in the summer of 1895, a discovery in which the before-mentioned tentacle was included. It chanced that a cachalot was killed off Terceira by some sperm whalers, and in its last struggles charged almost to the Prince's yacht, missed it, rolled under, and died within twenty yards of his rudder. And in its agony it threw up a number of large objects, which the Prince, dimly perceiving they were strange and important, was, by a happy expedient, able to secure before they sank. He set his screws in motion, and kept them circling in the vortices thus created until a boat could be lowered. And these specimens were whole cephalopods and fragments of cephalopods, some of gigantic proportions, and almost all of them unknown to science!

It would seem, indeed, that these large and agile creatures, living in the middle depths of the sea, must, to a large extent, for ever remain unknown to us, since under water they are too nimble for nets, and it is only by such rare, unlooked-for accidents that specimens can be obtained.