PJO but went bad

Btw, this is a very long intro. if you want to save yourself from reading it, just read this first paragraph, the rest is just naming the characters. Ok, so this isnt my idea, I got it off someone else and I dont remember who. but here we go. here is the story: the gods are getting rid of the demigods, basically just for existing (Zeus came up with it although some of them would rather not have their children killed, like Athena, Poseidon, and Apollo, along with a few other. also Zues doesn't want his children dead because he be greedy like that, you know) back on business though, they sent a monster to get rid of all the halfbloods. so the halfbloods are all leaving camp. Btw, idc what you are/do, be a god/goddess, a half blood, a mortal, heck, be a metal can that Grover eats for all I care. date anyone you want Characters: Percy, son of Poseidon, he does not want Percy killed. Annabeth, daughter of Athena, Athena doesn't want her killed either. Bianca, (ik that she is supposed to be dead and I have accepted that, but I just wanna have a little fun) daughter of Hades, her father pretends like he doesn't really care, but deep down, Hades doesn't want Bianca dead, or Nico. Nico, son of Hades, again, doesnt really want him dead. Will, son of Apollo, Apollo definitely does not want Will dead. Thalia, daughter of Zues, he doesn't actually want her dead, just demigods that aren't his. Jason, so of Jupiter(Zues), same as Thalia. Piper, daughter of Aphrodite, does not want Piper dead. Leo, son of Hephaestus, he doesn't particularly want him dead. Frank, son of Mars(Ares), Ares doesn't care about anything but war. Hazel, daughter of Pluto (Hades), it's the same as Bianca and Nico. Clarisse, child of Ares, doesnt care about anything but war. Reyna child of the exclusively Roman goddess, Bellona, she kinda like Ares, but cares a tiny bit more, but not much. Grover, satyr, not actually in danger but no leaving his friends. Rachel E D. mortal but the new Oracle.