Invisible Sun The KeyThe critical rules every player wants. Even as you read this, youre doing so in Shadow. You believe it to be the real world, and the sights and sounds you see are normal. You believe the events around you have meaning and significance. But a part of you, deep down, knows they do not. A part knows the real world is far bigger, far more mysterious and wondrous, than the grey shades around you. Of the four hardcover rulebooks included in the Invisible