Agatha Volskaya has every reason to suspect that her best friend has ended up in a sect. After a short investigation and meeting Irka’s new company, Agata realizes that everything is much more complicated. It’s more difficult because life after a meeting with a hereditary dark witcher cannot be simple. Especially when he states that you are his familiar and you need to “form a bond.” A connection that will change everything. There is no turning back, because love does not provide it, and the world of Practitioners opens up before Agatha. A world where there are more questions than answers, oaths are stronger than feelings, and every secret carries a threat.