Hallie Barnard—at 13 years old, the youngest guest on The Lighthouse Podcast so far—and her mom join Chris and Christy to share Hallie's health journey, starting with an incredibly rare bone marrow disease called Diamond-Blackfan anemia. After being diagnosed with this disease at just 15 months old, she waited for nine years to find a match for her bone marrow. She had a successful transplant, but her journey was just beginning, as she was diagnosed at 10 years old with osteosarcoma, or bone cancer. Hallie shares her response to the cancer diagnosis, and her process for making a decision on whether to have a full amputation or not. She also explains where her joy comes from, and what motivates her to learn to walk again. Hallie also shares some recent good news she's received, reveals what she wants to be when she grows up, and talks about the non-profit she has founded, called Hallie's Heroes.