I’ve been told that my description of the book had a grammatical error. I’ll try again.
The first of the Sister World Trilogy, Sister World I, The Arrival, tells the tale of the dangers faced by the people of Terah. Existing in an alternate universe, Terah, a mirror image of Earth, has had a very different existence.
Since the terrible conclusion of their third world war, the free people of Terah have been forced to remain in hiding while all others are subject to the brutal control of Frauliege, their despotic ruler. Discovering the existence of Earth and the way to send her people here, Frauliege prepares to conquer a second world; ours. In resistance headquarters two teens learn that the fates of both worlds will be decided by the people of Earth. With no one else able to make the journey, they brave the wormhole and begin searching for their mirrors, hoping not only to save this strangely similar world, but also the family that would be theirs.