One day, the gates between the worlds opened - and since then, for almost a hundred years, strange, mysterious creatures have been living side by side with people - the Danans, their brothers and eternal rivals fairies and elves, stern gnomes and half-breeds with a great gift - druids, from whom sorcerers of human blood began to undergo training long ago. One of these “mortal” magicians is Connor Gray, expelled from the Druid clan and became an independent detective investigating crimes committed by representatives of the Elder Blood. He is used to solving the most complex and dangerous cases. However, this since he is hired by the fairy queen Mab herself, because more and more of her subjects become victims of a mysterious killer who is not just systematically destroying the people of the Queen of Twilight, but also doing it in full accordance with the mysterious ancient Ritual...