The greater part of the book consists of an exposition on the conjuring of clouds and a discourse on the seven wandering stars (planets), the Seven Heavens, and their corresponding metals.
I pokaza se drugo znamenje na nebu: gle, Zmaj velik, ognjen, sa sedam glava i deset rogova; na glavama mu sedam kruna, a rep mu povlači trećinu zvijezda nebeskih - i obori ih na zemlju.