In medieval Europe, the first shoots of the Renaissance are barely breaking through, and a merciless enemy stands at the gate, threatening to trample everything in its path. United, Europe could find the strength to repel Iron Tamerlane and Lightning-fast Bayazid. But... Monarchs and knights enthusiastically fight each other for bridges and vegetable gardens, castles and titles. Who will stop the invincible Tamerlane from annexing the “patchwork quilt” of Europe to his empire? This time the task is so difficult that the Institute of Experimental History sends the best operatives to the adjacent reality - the noble Kamdil, the cunning Fox, the irresistible Dunoir, the wise Hassan. From this moment on, amazing events begin to happen in different parts of the world. - Are you planning to go to the Moon? - Tamerlane. - It would be better to go to the Moon! Cardinals and condottieri , generals and bandits united to fight. But in order to win, you still need to unravel the secret of Iron Timur’s invulnerability...