Alexa Emery, is not your typical demigod.
She grew up on Olympus, surrounded by the protection of all powerful gods, spoiled by almost all of them, and powerful as one can get without being an actual full fledged god. She's been tested, trained, and conditioned to be a powerful force.
She's a rare exception.
So, surely, after all her life living with them, she can handle being in the real world for once? There isn't a doubt in her mind that she'll survive just fine without the guidance from her family of divinities.
Being a camper at Camp half blood seems easy enough for her, especially with all her so called experience. Taking on a simple quest is mildly interesting at most.
So what happens when something throws her off course?
Her mind can no longer tell what it wrong from right, and soon enough finds herself fending for the wrong side.
Temptations are hard to resist, hard to suppress, and hard to ignore. So is the past.
Is blood truly thicker than water?
Can she be saved from what she doesn't know?
[this happens after the rising of Gaea]