"The "secret" is so miniscule, that when we find out what it is, it's practically laughable. The way they built it up in Act I, I was expecting the audience to audibly gasp when we heard what it was. Not so, because when you find out what it is, you're kind of like, "Oh." "
Like Mistress said previously, the show is more about the relationship between the mother and the daughter rather than the daughters "problem." Margaret has taken care of Clara for so long, being overprotective, and constantly worrying about what *might* happen. She has given Clara no room to grow.
Margaret is in a failed marriage and by putting all her time and energey into taking care of Clara, she doesn't have to deal with that fact.
You saw building suspense and a let down. I saw it differently. Maragret was so preoccupied with sheltering/protecting Clara that she had made the problem bigger than it really was. We are reacting to how Margaret portrays Clara. When we find out what *IS* wrong with her (at least the way I see it) we are supposed to go "Oh, thats all?" Of course we feel terrible for Clara and her accident, but we know, as does Fabrizio and his family, that this "problem" is all that Clara is, but just a small part of her - something that can be overcome.
I want to write music. I want to sit down right now at my piano and write a song that people will listen to and remember and do the same thing every morning...for the rest of my life. - Jonathan Larson. Tick, Tick...BOOM!