Book one:The Lightening Thief

What if there was another demigod at Yancy Academy? How would being around Percy affect this demigod's life? How would this demigod go on from this point on.

I do not own Percy Jackson and the Olympians, all credits go to Rick Riordan.
Book: Status:
(1) The Lighting Thief: Incomplete Started ⁹/⁷/²⁰²⁴
(2) Sea of monsters: Not written
(3) Titian's curse: Not written
(4) Battle of the labyrinth: Not written
(5) The last Olympian: Not written