In "The Son of Neptune," Ella finds comfort in the concept of safety, emphasizing her desire to stay out of danger. She believes in the idea that there is security in numbers and even refers to safety deposit boxes, highlighting her inclination towards protection. When it comes to making choices, she's willing to accompany Tyson, which raises concern from Percy, who worries about their safety.

Percy's response reflects his protective nature, showing his reluctance about letting Ella and Tyson embark on a risky adventure. He is anxious to ensure their well-being, even humorously questioning Mrs. O'Leary about her role in their plans. The dynamics of their friendship reveal underlying themes of loyalty and the importance of looking out for one another in perilous situations.