In “Mirror Mirror” two 14 year old girls discover they can see through identical mirrors 100 years apart and that they can travel to each other’s times. At first this is a source of wonder and delight but the two girls, Jo and Louisa, quickly discover they must solve an enormous problem. A canister of toxic gas threatens Jo’s friends. The girls must somehow find a way to alter the past so they can avoid a catastrophe in the present. While they struggle through the layers of space and time, Jo discovers the young Nicholas, Tsarevich of all the Russians, living in Louisa’s time. Captivated by each other, Nicholas and Jo work together to save their friends and to find a way of spanning time so they can remain together.