Raising Cain

There are domed paradises. They have whispering winds, soft grasses, hints of laughter echoing in the background.
There are the Outlands. They are dry and dead, cut by unending sun and slicing winds, haunted by the ruins of ancient cities.
Sierra lives in the Outlands but attends school in a paradise. She clings to the life she finds underneath the dome, painted with a synthetic sky. But every day she braves the desolation of the destroyed world beyond. She keeps a sketchbook which she guards with her life. One day she is visited by a dangerous Outsider, who sees inside her sketchbook and inside her head, the past that fits within the Outlands. This Outsider, Cain, can forge a new path for the broken world they all live in, but only if Sierra can be convinced to become his counterpart in this delayed destiny.