Her name was Thalia, and she gave her life to save three. And so, as Thalia lay dying, her father, Zeus, found another way for her to live - A way for all half-bloods to live. A gift, to ensure that no one in Camp Half-Blood would die the same way. The Barrier - to protect them from those who lived for their death. Every day, the story of Thalia’s Tree inspires me and her tree, protects my home.