Abigail is shocked and saddened to realize that Judah did not live, after all. Gibbie, who had been assumed by not just Abigail but all of the Bows to be the one who would die at a young age, ultimately was the one to carry on the Bow family name, and most important of all, the Gift. When Abigail saved Gibbie from the fire almost as an afterthought, she was really fulfilling her destiny.