A Conjuring of Light : A Darker Shade of Magic Book 3(Shades of Magic‪)‬

Witness the fate of beloved heroes and notorious foes in the heart-stopping conclusion to V.E. Schwab's New York Times bestselling Shades of Magic trilogy.
The precarious equilibrium among the four Londons has reached its breaking point. Once brimming with the red vivacity of magic, darkness casts a shadow over the Maresh Empire, leaving a space for another London to rise. Kell begins to waver under the pressure of competing loyalties. Meanwhile, an ancient enemy returns to claim a crown and a fallen hero is desperate to save a decaying world…
“A Darker Shade of Magic is smart, funny and sexy ... and Schwab keeps the excitement coming with roller-coaster plot twists that establish her as, perhaps, the natural successor to Diana Wynne Jones's contemporary fantasy crown.” - THE INDEPENDENT