Be careful! Walk with caution! Avoid places that are dirty or simply suspicious... like an underground pedestrian crossing. After all, it may happen that once you get there, you won’t get out again. Otherwise you will disappear completely without a trace. Watch your words. Sooner or later you will have to answer for each of them. And not with money, not with reputation, but with life itself. Take a closer look at the people who surround you. And especially to those whom you call friends. Are you sure that they all wish you well... or at least do not harbor evil intentions? Let's say your friend turned out to be a brilliant inventor and asked you to try out his new creation. Do not flatter yourself! What if it’s not you who are testing, but he is testing you? And in general... is this newly-minted genius who he claims to be? There are no trifles in life. And even a bad dream that torments you can actually turn out to be more than a dream. So, having awakened from a nightmare, do not rush to breathe a sigh of relief, in case this nightmare continues in reality. And God forbid you tell anyone about it. Better keep your mouth shut. And in general: your home is your fortress. A besieged fortress. So... don't open the door to just anyone. This is our story... or rather, the six stories that make up this collection.