Sometimes I go a little insane, when I think about the dynamic between Percy and the demigods who were part of the Titan Army, specifically named characters like Chris, Silena and Ethan.
Unlike most other demigods at Camp Half-Blood, Percy’s fate was inseparably bound to the outcome of the war. There was no possible scenario in which Kronos could win and Percy still survive in any way, shape or form, and, I think, everyone would have been aware of that. In contrast, many of the demigods who joined Kronos’s army seemed to believe that, should the Titans prevail, the surviving demigods of Camp Half-Blood would be granted amnesty. (Even if that would have been a lie)
Silena, for instance, admitted that she thought she was saving lives by working for Kronos. Likewise, Prometheus explicitly assured Percy that camp half blood would be spared, should they give up:
Silena tried to nod. "Before . . . before I liked Charlie, Luke was nice to me. He was so . . . charming. Handsome. Later, I wanted to stop helping him, but he threatened to tell. He promised . . . he promised I was saving lives. Fewer people would get hurt. He told me he wouldn't hurt . . . Charlie. He lied to me." (The Last Olympian, Chapter 17)
The Titan slid the jar across the table. "I give you this as a reminder of what the gods are like," he said. "Keep Elpis, if you wish. But if you decide that you have seen enough destruction, enough futile suffering, then open the jar. Let Elpis go. Give up Hope, and I will know that you are surrendering. I promise Kronos will be lenient. He will spare the survivors." (The Last Olympian, Chapter 13)
Prometheus smiled. "Troy was completely destroyed, Percy. You don't want that to happen here. Stand down, and New York will be spared. Your forces will be granted amnesty. I will personally assure your safety. Let Kronos take Olympus. Who cares? Typhon will destroy the gods .my way." "Right," I said. "And I'm supposed to believe Kronos would spare the city." "All he wants is Olympus," Prometheus promised. (The Last Olympian, Chapter 13)
Even though Prometheus also said, he would assure Percy’s safety, logically speaking, that promise would be even more non sensical, than the one about granting amnesty to other enemy demigods. After "Sea of Monsters", Percy was openly enemy number 1 of the titan army (after the gods) and, I think, most demigods would be aware of the fact, that Percy’s death was inevitable, should Kronos win:
I was feeling pretty good about myself, until Luke turned and gave me a murderous look. “Kronos was right, Percy. You’re an unreliable weapon. You need to be replaced.” (The Sea of Monsters, Chapter 17)
"Perseus Jackson," one of them said. "Yes," mused another. "I do not see why he is a threat." "Who said I was a threat?" The first Hesperid glanced behind her, toward the top of the mountain. "They fear thee. They are unhappy that this one has not yet killed thee." She pointed at Thalia. (Titan’s Curse, Chapter 16)
So, it’s not that big of a leap to think, that the titan army probably thought quite a bit about how to kill Percy specifically, long before the battle of Manhattan started. That’s what you do in war. You plan and scheme and think about how to take out your biggest threats. They would have been extremely foolish not to spend time plotting Percy’s death, and it’s reasonable to assume enemy demigods at least knew about those plans, if not actively contributed to them.
I now think about Chris, who was part of Kronos’ army since at least Sea of Monsters, returning to Camp Half-blood, and facing Percy again, who simply forgives him. Who is happy for him when he’s healed and not once brings up his life in Kronos’ army.
I shivered, though I wasn’t exactly sure why. Poor Chris…he hadn’t been a bad guy. What could’ve driven him mad? (Battle of the Labyrinth, Chapter 3)
“I heard about Chris,” I said. “I’m sorry.” Clarisse paced a circle around the arena. (…) She picked up a javelin and threw it across the arena. It nailed a dummy straight between the eyeholes of its helmet. She had called Chris a hero, like he had never gone over to the Titan’s side. It reminded me of the way Annabeth sometimes talked about Luke. I decided not to bring that up. “Chris was brave,” I said. “I hope he gets better.” (Battle of the Labyrinth, Chapter 13)
And as I watched Clarisse and Chris singing a stupid campfire song together, holding hands in the darkness, where they thought nobody could see them, I had to smile. (Battle of the Labyrinth, Chapter 19)
"Hey, Silena, I'm really sorry." She sniffled. Clarisse glared at me, but she always glares at everyone. Chris would barely look at me. He'd been one of Luke's men until Clarisse rescued him from the Labyrinth last summer, and I guess he still felt guilty about it. (The Last Olympian, Chapter 4)
Or Silena, whose boyfriend is one of Percy’s closest friends. Who fought alongside him to save Beckendorf from Festus, taught him first how to ride a Pegasus and whom Percy sees as a friend as early as “Sea of Monsters.” Silena, who has been a spy for the titan army since the beginning and gave Luke not only the coordinates of the golden fleece in "Sea of Monsters", but also told him specifically of Percy’s and Beckendorf’s mission to destroy the princess Andromeda and of camp’s strategies during the battle of Manhattan. Silena, who has betrayed camp countless times, but whom Percy still sees as a hero, even after finding out what she’d done, and whom he feels very protective of all throughout the last Olympian:
As I made my way through camp, I said hi to some of my friends. In the Big House’s driveway, Connor and Travis Stoll from the Hermes cabin were hot-wiring the camps SUV. Silena Beauregard, the head counselor for Aphrodite, waved at me from her Pegasus as she flew past. (Battle of the Labyrinth, Chapter 2)
Only Silena Beauregard didn't pay any attention. She sat beside Clarisse and stared vacantly at the Ping-Pong net. Her eyes were red and puffy. A cup of hot chocolate sat untouched in front of her. It seemed unfair that she had to be here. I couldn't believe Clarisse and Michael standing over her, arguing about something as stupid as loot, when she'd just lost Beckendorf. "STOP IT!" I yelled. "What are you guys doing?" (The Last Olympian, Chapter 3)
I could tell we were thinking the same thing: What if the Princess Andromeda was a ploy? What if Kronos let us blow up that ship so we'd lower our guard? But I wasn't going to say that in front of Silena. Her boyfriend had sacrificed himself for that mission. "Maybe you're right," I said, though I didn't believe it. (The Last Olympian, Chapter 3)
Finally I got up the nerve to walk over. "Hey, Silena, I'm really sorry." She sniffled. (...) I cleared my throat. "Silena, you know Beckendorf carried your picture. He looked at it right before we went into battle. You meant a lot to him. You made the last year the best of his life." Silena sobbed. "Good work, Percy," Clarisse muttered. "No, it's all right," Silena said. "Thank . . . thank you, Percy. I should go." (The Last Olympian, Chapter 4)
Her mouth trembled. Ever since Beckendorf died she'd been getting worse, and every time I looked at her, it made me angry about his death all over again. Her expression reminded me of glass—like she might break any minute. I swore to myself that if I ever found the spy who'd cost her boyfriend his life, I would give him to Mrs. O'Leary as a chew toy. "You're a great camper," I told Silena. "You're the best pegasus rider we have. And you get along with people. Believe me, anyone who can make friends with Clarisse has talent." (The Last Olympian, Chapter 12)
Connor and Travis Stoll met us by the elevators. "Is it true?" Connor asked. "About Silena?" I nodded. "She died a hero." Travis shifted uncomfortably. "Um, I also heard—" "That's it," I insisted. "End of story." (The Last Olympian, Chapter 17)
Or Ethan Nakamura, who actively tried to kill Percy during “Battle of the Labyrinth”, and who became the demigod, whose final allegiance made Kronos’ rise possible. Who tried to steal the Sword of Hades and almost killed Percy during the battle at the Williamsburg Bridge, while Percy saved his life twice, both in “battle of the labyrinth” and in “Sword of Hades”, and while Percy refused to kill him, even after he stabbed Annabeth of all people.
He fell on his back, dazed and tired. I put the tip of my sword on his chest. “Get it over with,” Ethan groaned. I looked up at Antaeus. His red face was stony with displeasure, but he held up his hand and put it thumbs down. “Forget it.” I sheathed my sword. “Don’t be a fool,” Ethan groaned. “They’ll just kill us both.” I offered him my hand. Reluctantly, he took it. I helped him up (Battle of the Labyrinth, Chapter 14)
I looked at Ethan. “When you see your chance, run.” (Battle of the Labyrinth, Chapter 14)
Ethan ran, straight into the cave of Melinoe. Thalia took aim at his back, but I said, “No. Let him go.” She frowned but lowered her bow. I wasn’t sure why I wanted to spare Ethan. I guess we’d had enough fighting for a day, and in truth, I felt sorry for the kid. He would be in enough trouble when he reported back to Kronos. (The Demigod Files: The Sword of Hades)
Even Ethan Nakamura was given a shroud—black silk with a logo of swords crossed under a set of scales. As his shroud went up in flames, I hoped Ethan knew he had made a difference in the end. He'd paid a lot more than an eye, but the minor gods would finally get the respect they deserved. (The Last Olympian, Chapter 22)
Like, the concept of Percy being enemy number 1 of the titan army but still treating every enemy demigod we know off with (mostly) unreciprocated understanding, mercy and, at times, even kindness is so fascinating to me and creates dynamics that are slowly driving me nuts.