The context of the following conversation is After searching for weeks, Carson finally found the doll that his sister lost.:
Carson says I am so excited!.
The friend responds You remember that doll your sister lost?.
Carson responds Yes, the one that we were sure to be missing?.
The friend responds Yes, I've looked for a replacement for weeks and finally found an exact copy..
Carson responds Will she believe it's the same doll?.
The friend responds That's the big question.  I hate to fool her, but she'll be so happy if she thinks I found her doll..