Sparks skip across the abyssal depths of the heart of the multiverse.  Something has gone terribly wrong.  Some universes shatter, billions of worlds lost and reduced to nothing more than slivers of white fire.  Some crack, their realities undeniably and irrevokably altered in the most fundamental ways.  Uncountable lives are lost.   But some universes only tilt.  They are shaken by the implosion of their fellows but not damanged themselves, just... changed.  The multiverse sends out a call for help to these worlds.  Who will answer?  Who could possibly save the heart of all worlds?