It is the thirtieth century, and a great barrier divides the continental United States. The Isomorph Phenomenon has swept the world, causing every pregnancy to result in identical twin births. The twins became known as the good twins and the isomorphs. To maintain peace, a treaty was forged. The isomorphs keep their chaos, theft, murder, and corruption on their side. The good twins build an inherently safe society on the other.
The penalty for an isomorph crossing the barrier is death.
But the centuries of peace have softened the good twins, and the isomorphs have grown bold. Near the small town of Goldflat, isomorphs are flouting the treaty and crossing the barrier.
Kember and Marcus are kidnapped by mistake, and during their enforced captivity, both are faced with an uncomfortable truth about the reality of the isomorphs beyond the barrier.
L. Y. Levand is a socially awkward fantasy writer (and cat lover) trying to make (human) friends and sell self published books. Her interests include cooking, cake decorating, martial arts, and dancing.
Isomorph was an enjoyable read with a very creative and thought-provoking premise. The concept of all childbirths involving twins, one essentially good and one essentially evil, has allowed Levand to allude to the concept of tolerance(or lack thereof in today's world). While the "good" twins are raised in a world in which everyone follows the rules, the "evil" ones are cast out to a lawless society that is separated by a physical wall. Isomorph's story centers on what happens when the two worlds clash after decades of forced peace.
I do wish that the story had involved discovering the reason for the diametric twins, and the ending felt a little anticlimactic to me, but it still pulled me in and kept me hooked until the end.