Two Car Head On Freeway Crash

"It's a train derailed and two car head 
on freeway crash each time we meet.
"and if it comes as some sort of surprise," 
she said "that I seem so composed, I've 
kept this moment closer to my eyes," she 
said,"than the glasses resting on the
edge of my nose."

Shadow am I! Shadow am I!
A question of a person, no said reply
Wolf am I! 
Wolf and shadow cast on the sheep as I pass by."