AN: I know that this under Harry Potter and Percy Jackson for the crossover. That is because a Harry Potter and Percy Jackson crossover. Actually it's more of a Harry Potter, Percy Jackson, Avengers crossover. My children stories focus more on Captain America/Avengers and Percy Jackson with some minor Harry Potter characters and xmen characters. However this story focus more Percy Jackson, Harry Potter, the other avengers like Thor, Ironman, and xmen. There like a chapter or two that would cover or mention of what happen in the children stories. Though it really depends on what will happen in the shadow witch and how much happen in the other children stories will depend on how long those certain chapters are.

There is still about twenty five years or so when Arabella comes around, up till than that the story would be more Percy Jackson and Captain America. For Emily is 51 right now and she would be about 76 or 75 when Arabella comes around for Steve won't be brought out of the ice till a couple of months before Emily and Steve would be 90 and Arabella is fourteen when that happens. There would be a few more chapters before Arabella will enter the story.

Also Melinda May will show up in this chapter, she will be a demigod as well. So you know at the moment the fifth cohort is not what is in the book right now for this is still in the 1970s. The fifth cohort losing it's honor doesn't happen till the 1980s, so it is considered one of the higher cohorts at the moment. I am only mentioning this because New Rome will appear and the cohorts will be talked about.

As soon as Emily shadow travel back with the car and other things that she went into her cabin, Phil was still fast asleep. After talking for a few more minutes that her mother left the cabin while Emily went to check on the second bedroom. It seems rather bare next to Emily's room, for there was a bed, a closet, a desk, a couple of dressers and a couple of book shelves. Emily left the room before going over the built garage, Emily went over to the car before using shadow travel on the boxes and bags to make them appear in Phil's bedroom. The shadows engulf the items and the items disappeared, Emily signed before walking back into the cabin. As soon as she entered the cabin that Phil started to stir, Emily walked over to him as Phil opened his eyes and sat up. As Phil sat up that Emily sat in the armchair next to the couch and watched as Phil looked around before he looked at her.

"Than what I thought was dream really happened."

"I afraid so." Phil lowered his head and was close of crying again, Emily went over to him and sat down next to Phil. "Phil, I understand how you feel. I lost my own father at a young age. Though it was due to an illness as oppose to a monster." Phil looked up at her.

"How old were you when your father died?"

"It was a week after I turned six." Phil looked shocked. "Don't worry, I had a friend of whose mother took me in." Phil looked relieved when she said that.

"Do demigods live like you do?"

"No, all of them would live like you till they learn of their demigod heritage. After that, that he usually join camp, they either become summer campers or year around campers. However you would be an odd one out since you would be the only child of Demeter in camp for I don't live there, I live here part time and the rest of the time in the underworld."

"What will happen to me?"

"If you don't mind, you live with me and I train you with your abilities over the plants as well as with the sword."

"Do I get to have my own sword than?"

"Yes, but you don't have one yet. You will soon though. But first let's go to the newly built garage before setting up your bedroom." Once in the garage that Phil was a happy camper, he went running worsen the car once before he sat down in the driver seat and pretended to drive it. Emily joined in with the fun, after a few minutes the they went back inside and started to set up Phil's room of which took a few days to do. Since there was some things he needed from his old house as well as being able to talk to his friends and explain of what sort of happened. Emily told Phil to say that his father got news of Phil having a sibling and they went to find the siblings but there was a car accident. While Phil got out with a couple of cuts and bruises that his father was killed, honestly the car they used looked like it was in an accident. After a week that Phil was pleased with his room, it was during that week that their mother gave him an antique watch, antique to Emily and Phil. That watch could change into a sword, so Emily started training Phil with the sword and his abilities for the next couple of weeks. At the end of those two weeks that Emily took Phil over to Camp Halfblood to have him meet others of his kind or part of the reason. As soon as she lead him to the Demeter cabin that he spoke.

"Rachel, isn't that the Demeter cabin?"

"It is." Phil looked at the cabin before looking at her.

"I like our cabin better."

"I know, but I need you to stay here for a couple of days. When I come back that we will go to the underworld for the rest of the summer before going back to our cabin for fall and winter."

"But why?" Emily signed and knelt down in front of Phil to be at his eye level, she needed to check on Camp Jupiter but Phil wasn't aware about a camp Jupiter and she made an oath not to tell anyone. As well as only to confirm the other camp if someone was able to figure out about the other camp, besides she wasn't going to take Phil there. For Camp Jupiter was too dangerous, when she first entered Camp Jupiter that it was dangerous for her. But she got used to it and learned the legion training quickly enough, even though the first few visits that the Romans treated her like a royal princess. That was really annoying, even if it was true that she was the underworld princess.

"There is something I need to do, by myself. I can't bring you with me, when I go there that I will bring you here. But I will come back in a few days, a week at most. All right." Phil nodded. Emily stood back up and went up the hill, on the other side of the hill that Emily ran into the shadows and reappeared on the side of the tunnel of where she could see New Rome. Emily looked at New Rome, she could never get over of how beautiful New Rome was, there times she wished that Camp Halfblood did his. But than again, building a city in Camp Halfblood might take away from it instead of adding something. Than again that was what Emily figures but that is something that she may never know any time if ever. Emily walked down to the Legion area of Camp Jupiter, as Emily reached the bridge that she force at what she was seeing. Beyond the bridge, it was the normal, Romans walking and wearing their armor and have their swords at their sides and everything. But it was the one demigod, or she assumes that the girl was a demigod, that was sitting on the ledge of bridge was what was unusual to see. The girl was the same age as Phil or Emily assuming she was for she looked close to Phil's own age. She looked like she could be Chinese, Emily walked over to the girl as she walked over that the girl looked up. When Emily reached the girl that she spoke.

"You're Rachel Blackthrone, the daughter Pluto, ambassador of Pluto?"

"I am, I come here form time to time to check up on the Legion and New Rome or if there is a meeting I need to go to. Who are you?"

"Melinda May." Melinda looked away from Emily.

"Who is your godly parent and which cohort are you part of?"

"My godly parent hasn't claimed me yet and it has been a month and half. I am part of the fourth Cohort." Emily sighed, she knows that with some demigods take a longer to get claim and the fourth cohort was the lowest cohort at the moment. While the third cohort can be just as low but it seems like the fourth was in the lost spot for now, that was mainly because they tried not to have the best fighters since most of the best fighters managed to join Fifth cohort, first cohort or the second cohort. The average fighters join the third cohort, some of the average fighters joined the fourth cohorts, Emily was sure at some point at will change one more and that one of the other cohorts will become the worst cohorts.

"Melinda, it takes a while before your godly parent claims you. They will claim you before you get your tattoo and the fourth cohort is not the worst cohort. It has been know that at times the third cohort will be on the same level as the fourth cohort." Melinda looked up at Emily with a hopeful look.

"So there is nothing wrong with being in the cohort I am in."

"No. Sometimes a cohort will need some help to get their honor back up." Emily looked around before looking back at Melinda. "Just wondering is war games on tonight?"

"They are. Why?"

"While, sometimes a demigod will be claimed at war games, maybe if I help you train for most of the day to get ready for tonight that your godly parent might claim you tonight." Melinda smiled and got down form the ledge, they both went towards the training area to train Melinda.

When that night came that Emily was up in the observation tower, the first and second cohorts were defending while the other three cohorts were attacking. Emily watched Melinda during the war games, throughout the day she helped trained Melinda and watched Melinda as she fought. It seems like Melinda was able to learn quickly of fighting skills and she seem to know how to use weapons when she touch them. Those were the common traits of Children of Mars or Area if the demigod was Greek, so Emily was guessing she was a daughter of Mars or maybe Bellona. As it happens at Melinda managed to get onto the wall first and helped get the flag, as soon as the flags left the fort that a fire appeared in the middle of the war games and Mars stepped out. Emily remained in the tower watching, she could hear Mars' booming voice but she couldn't hear the words properly. But as he tossed a gun at Melinda and it shrank into a sword that Emily knew that Melinda was claimed by Mars. Than Mars disappeared, Emily went down to the ground and just as she left the tower that Melinda came over and hugged Emily. Emily smiled lightly and swung Melinda around once before putting Melinda done and let Melinda join her cohort with a smiling face.

The next few days were boring for the most part, since for the most part she spoke with the leaders or she was in the senate meetings. Though, Emily managed to spend some more time with Melinda as well as some of the other demigods she hadn't meet quite yet. Most of them were between the ages of ten to twelve, that wasn't a big surprise to Emily since that was when most demigods manage to find the wolf house and sent here by Lupa. By the time that Emily left Camp Jupiter that it was much happier Melinda May that had a couple of friends that said goodbye to her than the Melinda May that she meet at the bridge. When Emily got to Camp Halfblood that she quickly found Phil and they went to the underworld together, the first thing she did was to take him to his room that he has while he was in the underworld.

Hades's POV

When Demeter came down here during the winter ten years ago that Hades thought there was going to be another fight about either Emily or Persephone. With Persephone, it was the normal things that a mother in law does to her son in law, even though they were also brother and sister. But with Emily, it was more like Demeter telling him off for not telling her about Emily, Steve and Bucky. When they were not fighting about Persephone or Emily that hey we're fighting about other things that siblings would fight about. So when Demeter entered the Harlem room that day that Hades expected the usual fights but he was surprised that it turned out not to be any kind of fight. He could remember that day clearly.

Hades groaned when Demeter entered the throne room, Persephone was out in the garden at the moment, she he was at least glad that no one was watching this fight. Hades was about ready to ask what Demeter wanted when Demeter spoke up.

"Hades, I need to talk to you about something serious." Hades looked at Demeter, unlike before, Demeter looked worried as well as very serious, but unlike when she was took to him before that there was no anger present.

"What's wrong, Demeter?"

"First off, you are aware of the fact that Emily has been praying for a new sibling."

"Yes, I am aware of it but she has been praying to you about it, I did tell her that she could task to you about it. But I think the problem is that she is not sure of how to talk to you about it, can't say I blame her, talking to your mother about having a sibling is just a weird thought. But you can use other words other than weird."

"Actually, I did give birth to a pair of twins in July." Hades was close,of sliding off his throne when Demeter said that.

"What? Does Emily know?"

"No, but that is part of the reason I came down here now instead of July. First off, so there a baby girl down here by the name of Gwen Coulson?" Hades shook his head when Demeter ask that question, he would have remembered hearing that name for it was an odd enough name that it would be hard to forget. "Well that is good news."

"Why did you ask me that question anyway?"

"You see, when I gave birth to the twins that the plan was original going. Be this, I would those Phil to Emily snd let Emily raised him and live with her both in the chain and down here. That his twin sister would grow up with her father till she was the and than join Emily and Phil. That was what Robert, the father, and I agreed on when I told him about Emily. For Emily is the only one that has the abilities that Phil and Gwen have. However that night after I left that some people, came to attack Robert and took Gwen, it wasn't till the next morning when I was about ready to tell Emily when I learned of what happened. Robert told me of what he could remember and that the people came from some sort of underground government or gang or something. Robert was knocked out but they took Gwen, up till know we had no idea if they killed Gwen or not. That is why I asked. I also came down here to ask you that if you can allow Phil come down here when Emily starts training him when he reaches ten." Hades bit his lip, he let the information sink for a few moments before he spoke.

"All right, I will let him come down here when he reaches ten. I will keep a look out for Gwen if she should come down here, I mostly doing this for Emily's sake though. She had suffer plenty and is slowly recovering from it and hopefully having a brother and training him will help her recover more."

"Thank you, Hades." Without saying anything else that Demeter walked out of the throne room.

Hades was standing at the steps that lead to the courtyard of where Emily and Phil were playing at the. Moment, it was rather amusing to watch them more because they were pretend to be a couple of people and because of who that he were pretending to be. For Phil pretending to Captain America while Emily was pretending to be Lieutenant USA or herself, of which was why Hades found it rather amusing. It was the last day for Emily and Phil to be in the underworld while it was Persephone's first day in the underworld. Earlier Phil meet Persephone was glad to have anger half sister, it was clear that Phil was aware of the fact that Emily was adopted but Hades by was born as a daughter of Demeter but that was all Phil knew. Watching Emily play with her younger brother remembered of the times he watched Emily as a four, five and six year old playing with her twin brother and her future husband. For he could see the similar light in her eyes from playing with Phil as when she played with Steve and Bucky when she was younger. Though the pain, sadness and slightly loneliness was still present in her eyes but the emotions were dulled. As Hades stood there watching that he could hear someone walking over to where he was and the footsteps stopped right besides him.

"One of the last time I saw her being this happy was the couple nights before Bucky fell off the train when she was in the bar with the Howling Commandos and playing the game that they call truth or dare." Hades looked over at Persephone when she said that before looking back at Emily laughing and smiling as she played with Phil. That night both Hades and Persephone were there, Persephone wanted a look at her younger demigod siblings since she hadn't any siblings on her mother's side for so long.

"True, hopefully Phil can start her healing process soon. Just like Emily talking to her birth father from time to time helped her. If there was another kid around that I am sure that the underworld would become brighter, even more than when you came and eventually Emily coming down here." Hades looked over at Persephone as she smiled when he said that, she took his hand making Hades smile and looking back at Emily and Phil.