The little flower awoke when it was first placed in the witch's hair. Serafina's magic was within it - a tiny part of herself, giving it some small amount of awareness that linked it to her mind. For years it flew with her, feeling the cold that should have killed it and the wind that should have blown it away.
And then it was given to the man who had no magic, and yet it still lived, connected to Serafina. It sat in the man's warm pocket, feeling his heart beat, waiting until it was needed.
When its time came it shrieked across the worlds, calling for the witch until its magic was spent and the hand holding it had lost all warmth.