Memory is everything.
I know, you think that you can always just live in the moment, but even as you have time to think the word "now" things have already been transferred to your short-term memory.
The tiniest amount of time creates a memory.
Some are never forgotten.
So, if one was to take away all memories of something, someone... everything would be gone. Everything.
And that is what I will do.
Because without their memories of each other, they would both be dead in Tartarus already.
They would both never find each other.
They would both be easier to kill.
It's time to get Percy and Annabeth out of the way.
Percy and I know each other well. We're acquaintances, no one he'd ever suspect.
I'm Melody, that girl with the brown eyes and ginger bob of hair from the Apollo cabin. The one with rimless glasses and light olive skin.
Sometimes we'd talk. I'd say things that can't be considered nosy but are kind of personal, the kind of things a socially-awkward geek would say.
So that was my cover, obviously.
He liked me, as a friend. And I learned everything about him from our chats.
Then one day, he left. Annabeth was worried out of her mind. The new campers came: Leo, Piper, Jason.
I was working for Gaea. I knew what was going on.
Almost a year passed while they quested. And then, the unthinkable.
Percy and Annabeth fall into Tartarus.
I know what to do now.
I tell Gaea my plan.