Agatha Volskaya has every reason to suspect that her best friend has ended up in a sect. After a short investigation and getting to know Irki's new company, Agatha realizes that things are much more complicated. More difficult because life after meeting a hereditary dark witcher cannot be simple. Especially when he claims that you are his familiar and you need to "make a connection." A connection that will change everything. There is no way back, because love does not provide it, and the world of Practitioners opens before Agatha. A world where there are more questions than answers, vows are stronger than feelings, and every mystery carries a threat.