The person who dares to claim that the world in which he lives is the only one in the Universe is a fool. Like an ant living its short life in the cycle of daily difficulties and surrounded by its own kind, man is just a grain of sand in a huge and mysterious interweaving of worlds.  Some worlds would seem like a fairy tale to him, while others would plunge him into the darkness of madness. As if from a forgotten childhood nightmare, they would appear in front of him, absorb, digest, destroy... The passage between the worlds is sealed, but with every second the old spell becomes weaker.  Our world is pierced by cracks, and their number is steadily growing. It's a disaster for anyone who falls into such a crack. There will be trouble for all of us when the hour of merging of worlds comes...