Bear with me, as it's pretty underdeveloped at the moment.
I'm thinking of a story set within a prestigious (and very large) magic academy, one with a focus on creating creatures from scratch. One night, an extremely powerful and dangerous creature is created and starts running loose throughout the school. Magical wards designed for this very occurrence kick in and completely close off the school from the outside world. The story would focus on brother and sister Sauth and Sarika as they join both the effort to hunt down and kill the creature (and the minions it eventually spawns, something that created creatures are not supposed to do), and the effort to find out who created it, and why.
