A.N.: Heyo! Welcome to this new story! I have secured all right to this from Pterygio. This is the sequel to 'Assassin of Olympus' I hope you enjoy! Also my other story is on temporary hiatus because I'm not getting any ideas. You can send me any ideas for the story, or tell me if you want to adopt it. If you intend to do this, send me a PM or a DM on Discord. I am fifthcentaurus on Discord.

CHAPTER 1

A boy slept away the night in a dusty room. He was wearing a faded orange shirt, with blue shorts. He wore an army jacket with pockets all over it, over the shirt. This boy was none other than Leo Valdez, son of Hephaestus and Esperanza Valdez; a fire user and incredible forger.

The building he slumbered inside of showed signs of having been lavish, but had fallen into disrepair. Vines crept up the faded blue walls, and the floorboards were halfway rotten. The weathervane on top had long since stopped rotating, now fixed in place and rusted. Most of the windows were cracked and dark, but as dawn approached, two windows, still intact, lightened up. One of these windows led into the room the boy slept in, while another led to a room where a man in his late sixties slept in his wheelchair. This man was none other than the immortal centaur Chiron, once the trainer of heroes and the director of what once was Camp Half Blood. The camp for half mortal, half god children had long since been abandoned, the cabins falling into disrepair as the godly patrons of the cabins Faded one by one. Even the cabins of the Archer Twins, Apollo and Artemis, which were made of gold and silver respectively, had somehow crumbled and rusted. Had there been any scientists there, they would have been fascinated by the state of the camp, calculating that it must have been abandoned about fifty years ago, when in fact it had been deserted for far less time, that is, four years.

As dawn broke over the horizon, no longer hindered by the ministrations of a careless god, the occupants of the rooms switched on their lamps and switched them off immediately, seeing how it would be unnecessary. Leo yawned as morning approached. He slipped out of bed and went down into the kitchen, where the centaur, in wheelchair form, made coffee and pancakes for the two of them. Both were the last demigods on earth, except the Assassin of Olympus, who had mysteriously disappeared after killing the last god Hades. It was rumored that he had been heading for San Francisco, but these claims had never been confirmed.

"Morning, Leonidas."

Leo groaned. "Horse man, could you please not call me Leonidas? Makes me sound old."

Chiron smiled. "Then, you stop calling me Horse man. Call me Chiron."

Leo snorted. "Not happening." He sat down at the half broken table, and pulled up a chair with a broken back. "What's for breakfast?"

"Pancakes."

Leo hummed and tapped on the table. Like most demigods, Leo had ADHD and Dyslexia, apparently because he had battle instincts, and his mind was hardwired for Ancient Greek. The Ancient Greek part he had used. The battle instincts part, not so much. How do you practice for battle, when there isn't a war to fight? It was rumored that there won't be a war for a long time, so there wasn't really anything to do except try to revive the strawberry fields or go hunting for lunch or dinner. Thankfully, Chiron was a pretty skilled archer, so hunting was something that was easy. However, the strawberry fields were too far gone, and only a child of Demeter or Dionysus could revive them. But they were fresh out of any demigods. Or gods, for that matter.

Who was Chiron's father, you ask? Well, he used to be the son of the Titan king Kronos, who had been defeated long before the demise of the gods. Now both Leo and Chiron were orphans, which had been something they had bonded over. Well, technically, the Assassin of Olympus was an orphan too, but how would you bond with a missing person?

Who was this Assassin of Olympus? From what Chiron had told Leo, he was a son of Poseidon, who had taken it upon himself to kill all gods, for some reason. Leo hadn't known that a god could be killed, but apparently the Assassin had done it.

He quickly ate the pancakes and drank the coffee. Being ADHD, coffee would usually help him focus better, since caffeine couldn't make him any more hyperactive.

He said goodbye to Chiron and headed to the forges, which was the only other building in camp that was decently cleaned. He slipped in and started making some armour for himself. According to Chiron, forging would help him hone his skills, as he was the son of the (deceased) forge god. Also, making armour was important as they were still getting attacked by monsters. The energy signature they gave was very small, but monsters seemed to jump at any demigod they found. Ever since the Greek pantheon had faded, monsters were disappearing too, and they thought that devouring demigods would save them. Since the underworld still existed, the monsters still came back but they were weaker with every rebirth. Chiron had hypothesized that the monsters would completely Fade after five months or so.

After five hours or so, Leo had made enough sets of armour to outfit a large army, with enough left for a big city. He couldn't believe that his skills had advanced so much in the last four years. He had been heading back when he heard rustling in a nearby bush.

His senses were automatically on alert. It could be a monster. But before he could do anything, a boy came out of it.

He was wearing an aviator jacket and the pockets were stuffed with what looked like figurines. A black sword was clipped to his side. He was holding some sort of cards. He looked confused to be there. He couldn't have been more than 16. Then again, you couldn't assume a stranger's age. What if they were actually gods more than a thousand years old, or if they were monsters looking for an easy meal. The boy looked up at Leo. His eyes were dark brown, and his hair were black as well. His skin was pale, almost unhealthily so.

Another rustle, and a girl, looking similar to the boy appeared. Her features were the same as the boy, except that her cheekbones were slightly higher. She wore a green beanie that flopped over her face, but he could see that she also had a light smattering of freckles. She had two black daggers clipped to each side, and a bow and quiver. The quiver was filled with wooden arrows that looked like they had similarly black tip. All the black weapons seemed to suck the light from the air. Leo had a sudden urge to prick his fingers on one of the points. He wanted to see what it would feel like…to have your soul sucked out of your body…to reside in the cool metal…for ages to come.

He snapped out of his trance. He recognized the metal. One day he had found a disc of this very metal in the forest, and had brought it to Chiron, who had identified it as a piece of Stygian Iron, forge like normal iron, but quenched in the water of the River Styx, now almost completely drained except for some little streams that, somehow, had come out onto the surface, and had now formed streams at the edges of the Woods of camp. The best explanation he could come up with was that an iron vein had somehow come into contact with the infernal waters, and had condensed into a disc of the metal. How it had popped out of the ground, he didn't know, but the metal had been useful for making new alloys with Celestial Bronze, making Celestial Iron, and Underworld Bronze, to name a few of the mixtures. Leo had been documenting the alloys and their properties, just in case if he ran across any demigods who could use it.

But there was one thing he knew quite certainly about: pure Stygian Iron can only be wielded by beings of the Underworld- be it minor gods, or their children, or even the children of Hades.

From what he knew, the minor gods of the Underworld despised everything to do with the Overworld. So children of the minor gods were nonexistent. And minor gods were now extinct, thanks to a certain Assassin. Hades was also dead. So, gods and minor Underworld demigods was ruled out.\

Which left only one option…that…these were children of Hades. Judging by their age, they might as well be. It was possible because they seemed to have been twelve when their father was killed.

Finally after what seemed like an eternity, the boy stepped forward.

"Hello." he said quite cheerfully. "My name is Nico di Angelo, and this is my sister Bianca. Who are you?"