The Two Crosses

When Jay Cross heals a paralyzed man just by shaking his hand, and is able to do it again and again, his quiet, cozy little world is on the verge of shattering.  The one thing that would make it all worth it, the one thing that would make him embrace his abilities, won't work, no matter how hard he tries.

At the same time, only a few miles away, David Kreutzer wipes his hand across his wife's forehead and cures her failing eyesight.  He, too, is able to repeat these healing miracles, and in doing so, he sees the bright glow of dollar signs.  Millions of them.

Where did this ability come from?  Why were they chosen?

And who is the mysterious stranger lurking in the shadows, waiting for his chance to destroy them both?