One way or another... she will be the end of the world. With powers that weren't supposed to be touched by mortal hands, Vi Solaris is determined to free herself and the world from the deadly vortex it's trapped in. This mission has taken her to forbidden lands and has transformed her from a sheltered princess to a fearsome warrior. But the ultimate triumph requires the ultimate sacrifice, forcing Vi to choose between the last tethers to her humanity and the very people she's sworn to protect. Vi's story of magic, sacrifice, triumph, and love reaches its epic conclusion in Crystal Caged.