A chapter-a-day for 10 days! Your Halloween Treat from Maggie Shayne Sara didn’t keep the promise she’d made to her roommate. She tried, she really did. She put her things in Nikki’s old bedroom, which was right where Nikki had told her it would be. But not exactly the way  Nikki had told her it would be. She’d said it would be exactly as she had left it. Purple paint on the walls. Cheerleading uniform hanging on the outside of the closet door, amid pom-poms, boy band posters, and her orange...