Day 22: Name a book with a tortured hero/heroine. (Grunge)

Day 21: Name a book you've read that was dramatic or angst-ridden.  (Emo)

 Angst-ridden? Twilight works. I hated this book, and as I got older this song now creeps me out a little.

Day 20: Name a book you've read that has multiple genres or cross-genre appeal. (Fusion)

Day 19: Name a book you've read that's either with a specific religion as a focus or something with a heavy moral/social issue in its backdrop.

This book is more psychological, but it does have a heavy spiritual/social issue to it.

Day 17: Name a book you've read with a hero/heroine who is either poor or from a lower background in status/society.  May be someone who remains in that class or aspires to greater living. (Folk)

One of the main characters is from a low caste in India. She eventually becomes free of it by traveling to Ethiopia.

I don't know if this is folky enough, but the song fits the book.