Tessa Gray crosses the ocean in search of his brother, and in London during the reign of Queen Victoria, she discovers the lower world where vampires roam the streets, powerful wizards, werewolves, and other creatures. Letter brother is a trap, and the girl is kidnapped Dark Sisters of the secret organization "Club Inferno" that use its uncanny ability to transform into any person, learning other people's thoughts and feelings. Rescued from captivity Shadowhunters, Tess caught in a net artful intriguers and was horrified to realize that all of the Nephilim was in mortal danger. Girl standing in front of a difficult choice - to find and free his brother or with Shadowhunters join the battle to save the world. In this way, Tess will understand that love is more dangerous than the most terrible sorcery ...