What is "Leopard Knocks" in the novel, Akata Witch?

Leopard Knocks is a piece of the physical world that is within the spirit world on an island that was conjured by ancient Leopard People. It is here where Anatov lives in his hut, and where Sunny first crosses the bridge over a monster to receive lessons from him. It is described as a city with large buildings such as homes and the Obi Library, as well as shops and restaurants. It also contains a significant amount of mythical creatures and plants which are used in magical cooking. Many Leopard People live here, including scholars and academics that study in the library.