Thanks for reading and feedback! But, You know - this is supposed to be collection of hooks for the horror scenarios. Fictional ones. So e.g. no "the Indus civilization didn't disappear for unknown reasons - there were climactic changes that caused it" This is just one of theories, we are not 100% sure it was climatic changes. So, in the FICTIONAL RPG scenario we can pretend that it was caused by some Lovecraftian mumbo-jumbo. You know, for the sake of the story and fun. Best regards!