Francis Harding is an international phenomenon, author of the best-selling books “The Cuckoo's Song” and “The Tree of Lies”, twice winner of the famous Costa Prize. She writes children's books that adults read. The most skilled craftsmen in the world live in the underground city of Kaverna. They create incredible things - cheeses that help you see the future, and perfumes that inspire confidence in the person who uses them, even if he is about to cut your throat. Amazing people live in the underground city of Kaverna. Their faces are impassive, like untouched snow. Expressing feelings requires training, and famous Face Makers charge a lot of money to teach a person to express joy, despair or fear. Into this dark world, where no one trusts anyone and everyone manipulates each other, Neverfell, a mysterious girl who has lost her memory, finds herself. But her face is a dangerous threat and a priceless treasure, and for this face many are ready to commit a crime...