A collection of stories about Demyan Grigoriev - a guy who believes in reason and logic, is well versed in programming... but for some reason, every now and then he finds himself in the center of incredible, supernatural and nightmarish events!

“Don’t think about the monster"In an abandoned pioneer camp, teenagers accidentally found an old photo album with a terrible legend about Zhragar - a monster that kills people and then inhabits their bodies. The monster skillfully disguises itself, and it is almost impossible to detect it... But still, Demyan must figure out a way to escape from it - or add to the already long list of victims. “Evil Virus” Demyan is fourteen, and he is a cool hacker. But the Internet is a truly dangerous place, and one day a student's special skills land him in serious trouble. A monster has appeared on the Internet, sending out threatening letters, and Demyan will have to figure out who exactly is hiding under the mask of the monster. But the guy didn’t calculate his strength and got involved in a deadly game... “Battle of the Sorcerers” Demyan is sure that all the misadventures in his life are not without reason, someone put a curse on him. The guy decided to figure this out and went to the television program “Battle of Sorcerers” to get help from the strongest magicians and witches in the country. But he forgot a simple rule: if you think everything is bad in your life, one day things might get even worse! And now Demyan is haunted by a shadow that is sapping his strength. For some time the guy manages to run away from her, but sooner or later the deadly race will end... “Under the Mask of a Ghoul” One day, Demyan, as a great specialist in evil spirits, and part-time a cool hacker, was asked to deal with strange messages containing threats. The guy was one hundred percent sure that this was all nothing more than a stupid prank. But when the game went too far, terrible threats came true, and friends turned out to be not who they said they were, even an experienced hacker began to feel uneasy... “The Door to a Nightmare” There are people to whom trouble just sticks. Dem - Demyan Grigoriev is one of them. This is not about any ordinary problems, he is lucky to meet monsters. Well, it's time to take control of the situation. If a confrontation with horror is inevitable, let it take place on Dem's terms! And a search on the Internet yielded the result: the nightmare hunter has his first task. The main thing is that it does not become the last... “Black Water” In all the alterations, Demyan got used to relying on his sharp mind, logic and composure. And he was sure that he could trust himself! But, as it turned out, I was wrong. And now an old enemy is on his trail and is ready to use the guy and his friends to carry out his insidious plans... and the cherished desire of Demyan himself.