How Lovecraft found new fans thanks to a terrifying role-playing game

My group has been playing a CoC campaign for around 6 months and it's fantastic. Very different from D&D, adventuring seems to be a process of slowly losing your sanity. We've been jaunting around New England in a Rolls Royce, running into strange townfolk and occasionally inexplicable phenomena. We recently found a telescope that can sort of take over your mind if you look through it. Lots of Lovecraftian props - crystals, lenses and prisms with odd properties, NPCs who have gone insane, medical anomalies... and the style of play is very different from D&D - very little combat, lots of investigation.