What is the main conflict in Interview with the Vampire by Anne Rice?

Cursed to live for eternity in a child's body, Claudia is furious that she will never physically grow into adult. She makes the decision to rise up against Lestat, whom she blames for her nature. She lashes out against him, and both she and Louis believe him dead when they prepare to leave for Europe. Once overseas, they encounter nothing but mindless living corpses until they arrive in Paris