“Apollo had said he knew what this kind of love was capable of. And I finally understood why Paris had risked his country and his blood for Helen. Selfish, yes, but I understood. I would burn the world if that meant Alex would be safe"
- Aiden St. Delphi, Elixir
Early life: On the night of his parent's death, a half-blood sentinel risked his life to protect both Aiden and his brother, Deacon St. Delphi. The half-blood's sacrifice led Aiden to believe that he had a duty to protect innocent half-blood and pure bloods, so instead of taking his family's seat on the council as expected, he became a sentinel. Years before the novel Half-Blood, Aiden caught sight of Alex in the training room sparring with Caleb. Her laughter and easy nature piqued his attention. At the beginning of Half-Blood, he is twenty.
Aiden has dark wavy hair that always falls in his face, and quicksilver grey eyes. He is believed to be around 6'5". Alex mentions numerous times that he is very attractive.
Alexandria 'Alex' Andros: Alex and Aiden have a complicated relationship. In Half-Blood, he agrees to train her so that she can graduate her training on time. Although the sexual tension between them is strong, they refuse to start a relationship since it is forbidden. They become closer in Apollyon, but the romantic relationship starts in Deity.
Deacon St. Delphi: Deacon is Aiden's younger brother. Aiden takes care of him after their parents were killed at a young age. Aiden cares for him very much and hates it when Deacon drinks and goes out partying.
Seth: Seth and Aiden are rivals for Alex's affection.
Aiden is strong minded and brave. He is caring, romantic, proper, rule follower, and great in combat. After feeling the need to protect half-bloods and pures, he turned down his family's chair in the council and instead became a Sentinel. His brother Deacon says that he grew up too fast and is too uptight for his own good.
"Then I should be relieved to know what I was told an hour ago is false. It wasn't you who yanked a girl-by her hair-out of a chair in the common lounge area."
"You are my everything."
"My heart stopped when that damn door closed on me. I could hear you two fighting. I could hear him taunting you and I could hear him breaking your bones. And there wasn't a damn thing that I could do about it."
"And because I love you I am willing to die to save you from that. Don't you dare take that decision away from me again.""Zoi mou."