Unfortunate Love (Klaus Baudelaire)

Dorothy Snicket has been an orphan since she was two, and she doesn't remember much before the foul Count Olaf adopted her.
From the moment Dorothy learned to walk and talk, Olaf put her to work. She's been trained into submission and is basically a shell of a human at this point.
That is, until Olaf adopts three more children that might be able to help Dorothy out of the awful situation she's in.