What happens to marinas face in the book so much to tell you?

I actually don't know for sure but my English teacher informed us that she had acid damage to her face from her father. It says something in the book about the fathering aiming for the mother and getting marina.....well he apparently had acid and went to throw it at Marina's mum but the mother ducked and Marina got the acid in her face....

i don't no if this is true because all pictures of the book her face is perfect