Natalie Hopkins, mortal plant-speaker, enters Olympus to save her paralyzed mother Hannah by becoming nanny to Sophia's son Austin. She overcomes Apollo's trials, saves Austin, helps Sophia regain her power against her unfaithful husband Bryce. Later, she helps the broken demigod Cullen find peace. Apollo becomes her protector and secretly cares for Hannah, who miraculously walks again. Natalie chooses Apollo.