Sources of terror: taboos in the old city, folk rules, plots by living people, memory tricks, daily thoughts that are extremely scary
Fighting methods: game of rules, breaking the ban with secret pen, close-up trickery, IQ crushing, fighting for one's life at the cost
Atmosphere: depressing, chilling, suffocating, the more I read, the more I get scared, the more I get scared, the more I want to read.