Does anyone know of a book about mental illness that ends in suicide or has a sad ending in general?

Girl interrupted is a very good one!

1) Ordinary People by Judith Guest

2) Girl Interrupted by Susanna Kaysen

3) The Bell Jar by Sylvia Plath

4) One Flew Over the Cuckoo’s Nest by Ken Kesey

5) Prozac Nation by Elizabeth Wurtzel

6) The Gargoyle by Andrew Davidson

7) Running with Scissors by Augusten Burroughs

8) Sybil by Flora Rheta Schreiber.

9) She’s Come Undone by Wally Lamb

10) The Secret Scripture by Sebastian Barry