A living bookmark at first glance looks like an ordinary cobblestone. But if you look closely, you will notice that in a piece of resin that was petrified hundreds of thousands of years ago, an insect or even a small animal is frozen in perpetual motion. To get such a bookmark from a two-room apartment is unprecedented luck, because it is a powerful artifact. For example, a bookmark with a dragonfly gives the right to a second chance: whatever the past, it can be completely changed. Living bookmarks are very rare, and this is good, because if they fall into the wrong hands, they can cause a lot of trouble. Former diver Denis decided that nothing bad would happen if he gave the witchers one insignificant detail of ShNyr’s daily life. After all, who doesn’t know that the kitchen assistant Nadya talks incessantly and loves to gossip? And what is the benefit of this news? Still, the girl doesn’t dive and rarely leaves the kitchen. But there is no such thing as a small betrayal. And this seemingly trivial secret opened the way for the witches to one of the most powerful bookmarks of the last century...