Red Lily by Nora Roberts
In the Garden Trilogy #3
In the third installment of the Garden Trilogy, Haley is restless and lonely. She is surrounded by this new family at the Harper House, good friends, a job she loves, and a gorgeous toddler, but something is missing. Haley is longing for love and romance and trying to decide what to do about her feelings for Harper Ashby. At the same time, Amelia's ghost is stirring up trouble again and this time she is targeting Haley. Can Mitch., Roz, Haley, Stella, Harper, and David figure out what happened to Amelia before it is too late?
Stop Pretending: What happened when my big sister went crazy
by Sonya Sones
Written in verse. Cookie's big sister had a mental breakdown and it landed her in a psychiatric facility. The family Cookie once knew and loved is now virtually unrecognizable. At the same time, her friends have pulled away and other kids have begun to tease. No one wants to be friends with the girl with the crazy sister. But Cookie loves her sister and is heartbroken.