Western Waves — Brittainy C. Cherry

I’d never met my father, but on the day he died, he left me a letter. He said he'd leave all of his millions to me if I completed the tasks on his list. The first task at hand? Move into the same household as Stella Lane, my new step-sister. Stella was cold. I was ice, too. Stella was lonely. I craved being alone. Stella didn't speak unless she had something to say. Each month, a new letter arrived with a new task. Each month, the tasks grew darker as more secrets of my past were revealed. Somehow every task circled back to the lonely girl living down the hall from me. Stella Lane didn't speak unless she had something to say. All I wanted was for her to have something to say to me.