A/N: This story's plot isn't mine, the original owner of the plot passed away and couldn't continue so I decided to adopt it because I loved the story. I have made a few tweaks and changes to suit this version. Also I'm not American, I'm a Brit(British) so excuse me if I get some things wrong especially to do with high school, which we call secondary school but I will try and do some mini research about it.

The PJO and TMI people will be in the story later in this chapter.

I do not Own PJO or TMI

Here's the full plot/summary:

Some of our favorite demi-gods, have been sent on a quest to find out why there has been such a increase of monsters near a school, the same time our shadow hunters notice the incredible rise of demons in that same area. They are near a school so they become students in order to complete their quests/missions. However their teachers aren't your normal every day teachers, first they have a Science teacher that doesn't care and seems to hate all of the students and like to look at Wine magazines. But that's nothing compared to the History teacher, that man is a walking shiny disco ball rainbow. The principals are also weird, one man in a wheel chair he seems like he could be over 500 years old and a women who could to be able to kill you with one strike and likes rugs.

Somehow they have each others attention and seem to be highly suspicious of the other but will they come together to defeat the rising evil.

"JACE GET OFF YOUR LAZY ASS AND LETS GO!" Isabelle yelled pounding on Jace's bedroom door.

Alec sighed leaning back against the wall. If Jace didn't hurry they'd be late for their ride and then they'd have to walk. The dark hair teen was not having that.

"ALRIGHT!" Jace said throwing opening his door and stepping out. "I'm ready, lets go."

Isabelle and Alec put up there bags shaking their heads and started heading down to the front door.

"Why can't your boyfriend be fashionably late." Jace grumbled. "And let us sleep."

"Because one: He can't. He doesn't want to get in trouble on the first day. Two: I already get up early and Three: He likes pissing you off." Alec answered with a shrug. "And Izzy he said he'd have coffee for you."

"Good." She said with a yawn.

"Still don't like it." Jace muttered

"Would you have prefer getting up and going with Mom? She was up and out an hour before us. And at lest he's giving us a ride. Trust me he hates this as much as we do."

"Sometimes I hate our jobs. Why can't we just kill the thing and sleep instead of this."

"Because Jace," Alec sighed again. "We don't know what it is. So we have to investigate. Us as students, Mom as assistant Principal and Magnus as a-"

" Yeah I know. But still, a High School?" Interrupted Jace as they left the Institute.

"I don't see why the Hades I'm here, I'm a hunter for Gods sake." Thalia grumbled loudly,

Nico winced at her volume, "Take it easy on the use of my dad's name, its not his fault" he replied

"Yeah, but I think Artemis would also like to find out what is happening so whats better than sending her best hunter out for the job, plus isn't it fun to hang with us. "said Annabeth.

"Yup, what fun!" added Clarisse with sarcasm dripping from her voice.

"I know right, Clarisse,it is fun." said Percy.

The five of them walked down the school hall following the crowd of students to the auditorium for the morning assembly. It was the first day of school for the new year so announcements were to be made, rules gone over and introducing staff members, old and new. As far as new, there was a new Principal, and assistant and a new Science and History teacher. The demi-gods didn't know who the new Principal assistant or History teacher was, nor did they care. Though they knew the Principal and Science teacher. Very well. It was none other then Chiron and Mr. D from their beloved Camp Half Blood. Leaving Artemis, Hestia and a few Hunters were in charge of the camp due to the new quest,which to find out what was to find the cause of the increase monster. Chiron believes it to be a demi-god or something related and his theory was backed up by the fact there was a school on area (the one they were at now) and house and apartments near by. The gods didn't know the cause and were starting worried over it. Percy, Annabeth Clarisse demanded to join in the search. Nico had already been a student at the school for three years so it was no question that he would aid and Hades was also interested in this, Thalia was requested by Artemis.

Since the increase of numbers a very few days ago it caught their attention fast. And they all agreed something had to be done. And so it was decided they would attended the school and keep look out and come back at night to stake out and rid the area of any monsters they see.

"How long do you think this will take?" Annabeth asked them holding hands with Percy.

"As long as it takes I guess," Percy shrugged. "I can't wait for Grover to show up." Grover had some extra errands to do, with him being Lord of the Wild, before joining them and Percy couldn't wait to have his best friend around again."Shouldn't be too long. I say a month or two." Clarisse said glaring a some of the students passing them. Nico was about to make his own comment when the group in front of them suddenly stopped causing the Son of Hades to run into one of the students back.

"Hey watch it!" snapped the blonde student.

A/N: GASP! Who did Nico run into? If you have already read the original version I hope ya like mine, Please review and add suggestions on what to do and where to add Clary and Simon or just not to include them. Au revoir mes amis.