About the book: 2019 / Lewis's adventures continue! Opening a chest that belonged to Grandfather Barnavelt, Lewis finds a mysterious coin. She looks completely ordinary, but for some reason the boy does not want to part with her. Soon events begin to happen that are difficult to explain: mysterious postcards arrive with disappearing ink, frightening shadows are seen in the darkness... Is a coin really connected to all this? What if Lewis accidentally released an ancient evil into the world??