Worlds Enough...and Time
by Kristine Kathryn Rusch
Whenever things get rough, Roxanne escapes to other worlds. She possesses a talent that skips generations, a talent that no one else believes exists. Except her granddaughter Marissa, who exhibits the same talent. Marissa, who can open windows to other worlds. Roxanne wants to train Marissa to live with her talent, but the rest of the family wants to stop her.