The Laboratory- For Percy Jackson, the world is limited to H.E.P.F., a laboratory where the scientists take a twisted pleasure in performing the most gruesome of experiments on children. For Annabeth Chase, however, the world is boundless, her mother's job allowing the British teen to have one exotic vacation after the other, people and places blurring together in her mind. Yet when Athena Chase's job takes her to H.E.P.F., a lab dedicated to protecting humans on a molecular level, Annabeth soon realizes that all is not as it seems; and that maybe the facility has more to it then meets the eye. (Mortal AU)