To live in a circus, to run away to one; this is the dream of many.  The shining lights and the music and the cheering of the crowds are appealing to some.     How little they know!     This is the story of two brothers who were raised in a circus.  One, a slave to the Master -- his most brilliant performer and a boy of pure white who has never been allowed to see the sun, nor feel the grass beneath his feet, nor the touch of rain upon his skin.  The other, a slave to his brother -- a guardsman, trapped there not by chains but by love and loyalty.  When fate proves unexpectedly kind to them on an otherwise cruel day, they find themselves free along with the girl they have been raised with and must find their way in a broken world, all the while being hunted without pause and without mercy.     The Master has lost his prize.  He is determined to reclaim it.