The nightmare of Westeros

In one timeline Luna was banished to the moon for a millennia. In this timeline the elements tore a hole through space and time and banished her to a different world altogether.

Finding herself in a world where the magic is weaker and different then the one she came from. In a land dominated by power-hungry lords, brutal winters, barbarous religions, and constant war Luna must rely on her political savviness, commanding ability, and intellect to survive.