Armed with invisible ink, a cipher system, and a passion to end the war and preserve the Union, Elizabeth Van Lew became Butler’s eyes and ears in the Confederate capital city. Truth be told, however, she became much more than that. She became a spymaster, the person responsible for running a network of agents, couriers, and safe houses that was very active during the war. Which word best describes the tone of the passage?

curious
nostalgic
triumphant
respectful