A Conjuring of Ravens (A Practical Guide To Sorcery Book 1) By Azalea Ellis – Silver Dagger Book Tours. Genre: Epic Fantasy. In a world where magic is a science, Siobhan is a genius. But even geniuses need schooling. A Conjuring of Ravens is the first book in a hard fantasy series that includes: an intelligent protagonist, a rules-based magic system, and some hilarious misunderstandings. Enter Giveaway.