Narcissa sat, watching the bustle of Kings Cross, waiting for the
train, thinking....

   Oaths are important, they bind us together; their broken shards
   make vicious weapons.  

   That's why this has to end now.  "...cleave only unto him..."

   But why, oh why, did it have to be now, did it have to be him?

Travellers that afternoon wondered why a smart young woman was sitting
there, crying, but none of them made any move to comfort her. 

Until, that is, a schoolgirl bounced out of nowhere to enfold the
future Mrs Malfoy in her arms.

"It's all right, I'm here now."