Evermore: Dark Soulmates

You've heard of soulmates, the proverbial other half. Just like cells divide, sometimes souls can be cleaved, and the two halves will follow each other throughout time, from one life to the next until, in the end, they cease to be. They might be mother and child, brother and sister-frequently identical twins-or even best friends, but most often they are lovers. Most of the great romances throughout history have been soulmates. But sometimes, soulmates go bad. It comes down to simple biology...