Teen Press Corps Member Haley Interviews Author Marie Lu by Haley Jústiz, video by Sophia Martinez, BookPeople Teen Press Corps TTBF Keynote speaker Marie Lu is the author of two YA series—Legend and The Young Elites—as well as a new book revolving around a virtual reality game called Warcross. Warcross is a technological rags to riches story about a girl who hacks herself…