I needa a help forming a thesis statement integrating the fall of the house of usher and dr jekyll and mr hyde.

Why don't you take a stab at it, and we'll help you from there.

Your thesis statement should include: your topic + you opinion/point + your reasons

I was thinking about doing something about the duality of characters and how each is dependent on the other for survivial in both stories. Dr jekyll and mr hyde is obvious... the good vs. the evil in both of the characters. In the fall of the house of usher, roddrick and madeline are twins and with the decline of madelines health is health also declines. Madeline is physically sick while roddrick is mentally ill.