Carla Buckley lives in Chapel Hill, NC, with her husband, an environmental scientist, and their three children. She serves on the Board of the International Thriller Writers as Vice President of Awards, and is the international bestselling author of Invisible and The Things That Keep Us Here, which was nominated for a Thriller Award as a best first novel and the Ohioana Book Award for fiction.a1. Do you believe it is ever justified for a company to put people at risk? When, and how much risk?2. What lengths would you go to for your sibling? Would you make the same choices Dana and Julie made?3. Do you think of Peyton as a typical teenager? What makes her unique?4. A major theme of Invisible is the idea of going home again. Has Dana outgrown her hometown? What does that mean to you?5. If Dana's sister had not died, do you believe she would have made the same crusade against nanochemicals? If she had returnedto Black Bear for unrelated reasons, do you think she would have taken up this cause? Why or why not?6.