Who knows the end? What has risen may sink, and what has sunk may rise. Loathsomeness waits and dreams in the deep, and decay spreads over the totter… - H. P. Lovecraft

The sciences, each straining in its own direction, have hitherto harmed us little; but some day the piecing together of dissociated knowledge will open up such terrifying vistas of reality, and of our frightful position therein, that we shall either go mad from the revelation or flee from the deadly light into the peace and safety of a new dark age.

And as I walked by the shallow crystal stream I saw unwonted ripples tipped with yellow light, as if those placid waters were drawn on in resistless currents to strange oceans that are not in the world. Silent and sparkling, bright and baleful, those moon-cursed waters hurried I knew not whither; whilst from the embowered banks white lotos-blossoms fluttered one by one in the opiate night-wind and dropped despairingly into the stream, swirling away horribly under the arched, carven bridge, and staring back with the sinister resignation of calm, dead faces.

There are black zones of shadow close to our daily paths, and now and then some evil soul breaks a passage through. When that happens, the man who knows must strike before reckoning the consequences.