Loving a Monster: Annabeth Chase was never a demigod. Or at least, the Annabeth Percy knew. Instead, she was an empousi under Kronos's rule, ordered to kill the a demigod daughter of Athena named Elizabeth when Elizabeth was only seven, and take her place in time to win Percy Jackson's heart and help Kronos win the war. What neither Kronos nor Annabeth expected, however, was for Annabeth to fall in love with Percy Jackson.

The title is subject to change, didn't really know what to call it. No, this is not an OC story, there will still be canon characters. It is just an AU. If it didn't make any sense:

-Elizabeth was a real daughter of Athena
-Annabeth killed her right before she was about to run away
-Annabeth is an empousi
-Instead of taking the name 'Elizabeth' Annabeth stuck with 'Annabeth'. She just took Elizabeth's last name, 'Chase'.