Disclaimer: I do NOT own PJO
Prolouge
100 years.
100 years since Tatiana Grace died, causing the end of the battle between Chaos's forces, who had campers from Camp Half-Bood fighting with then, and Primordial forces. All the campers that fought in the Second Titan War have been given immortality by the gods. Some heroes of the Second Titan War have joined Chaos. Others secretly joined chaos along with some demigods who'd only fought in the battle against the Primordial stay at the camp, keeping the secret of what side they're really on.
Tatiana killed Daniel. Later, she and her evil clone went off the side of the building and into a fire. Tatiana sacificed her life just to make sure her evil self would not survive.
Tatiana's father, step-mother, and half-sisters still mourn for the lost of their daughter and sister, but have moved on for the most part. Since their people live longer than mortals on Earth, they've been forced to suffer longer. None of the girls have taken the throne of Sparks yet, but they know one of them must rule. Sara, who has been married for years, is the one who will most likely take the throne.
Lucian mourns the death of his best friends, but he also has learned to deal with the pain. But Percy is the one who mourned the longest and suffered the most. He's raised his and Tatiana's adopted daughter, Marie Rose.
Marie Rose. She's all grown up, and has strived to be like her mother ever since she was old enough to understand everything around her, and what took her mother from her. She's not a sweet little girl anymore. She definatly won't let you walk all over her.
Everyone on Chaos's forces has felt the loss of their friend and lieutenant who's role as second in command next to Percy has not been filled.
No one has been able to track down Blake. To be honest, no even knows anything about him, only that he was Tatiana's friend. No one know's if he was immortal, or mortal. Not even a simple thing like whether Blake is alive or dead.
Everyone's had a fine life these past 100 years.
And that will change sooner that anyone expects.