This fantastic novel is set in a bipartite world, the first being a nocturnal world where magic predominates and the second solely daytime dominated by technology. Our hero was born on the night side but the particularity to take his magic shade, which makes him a creature halfway between light and darkness. The author uses this ambivalence to the Shadow Master a bridge between these two worlds and adventures of the latter reflect the path that will bring him to fulfill his destiny. This backstory with a nocturnal world rich in detail and fantastic features take us on a thrilling and entertaining reading.