The Story Begins

It is Christmas Eve in my Dad's bed.  Stockings hang above the fireplace and a quiet but constant jingle of sleigh bells can be heard emitting from an unknown source.  The sleigh bells seem to come from nowhere and everywhere.  They have been ringing for days. 

My dad's other spinal discs rest deep in slumber.  You are the only disc who is awake.  

You hear a gentle rattle from the window next to my dad's bed.