"Axel, how is Anna's condition? She's fine right? What did the doctor say?" Caroline asked who was concerned about her daughter's condition.
Axel nodded slowly. "The doctor said she was really experiencing it. Not only was Anna hallucinating but indeed she saw what she saw. Actually I don't really believe that someone who is dead can communicate with someone who is still alive, but the doctor advised me to believe what what Anna saw and believed what Anna said. I'm trying. I have to try my best for Anna's good too." Obviously Axel said what the doctor had explained.
Yes, Caroline and James really don't know how their daughter really is, because Axel forbids them to ask Anna directly. And after Anna returned to the room, This was an opportunity for Caroline to ask Axel to find out what really happened to Anna.