Nico has demonstrated his bravery and loyalty through various acts. He chose to protect the secrets of the camps in order to prevent a war and willingly ventured into Tartarus alone to locate the Doors of Death. His courage was further tested when he was captured by giants, yet he persevered. Leading the Argo II crew into the House of Hades showcases his leadership and determination to fight against dark forces.

Now, Nico faces an even more daunting challenge: he has taken on the perilous quest of retrieving the Athene Parthenos to bring back to Camp Half-Blood. Despite the risks, his resolve to accomplish this mission highlights his growth and dedication to his friends and allies, cementing his role as a key figure in their ongoing battle.