I'm in the middle of a paper crisis myself. I haven't read either of those novels, but I will say it's always easier to do something you enjoyed. Have you spoken with your professor about it? Whenever I'm stuck I go in for a meeting with my professor and just tell him/her straight up: I'm having trouble finding a topic for this paper.

They've always been more than willing to brainstorm with me and let me know what they think will or won't be a good paper. I would try to meet up with yours for a discussion. Just be ready to answer questions like, "what, exactly, did you like about the novel?" They will ask you things to help you narrow stuff down.

I'm sorry I couldn't be of more help, but without reading the novels I can't make suggestions. Symbolism and Character Analysis are always two good places to start... *shrug*