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Mrs. Watson: The other night when you were talking about Sherlock's work, I saw something in you. There was a spark, a sense of excitement. I haven't seen that in you in a long time. You like what he does.
Joan: Yes, okay, I enjoy it but I'm not a detective. I'm almost done working with Sherlock and it's onto another client.
Mrs. Watson: Will the next client make you happy? People find their path in the strangest of ways.