Daughter of Posieden

Skyler Flee ran away from home when she was four. Now she is 12 and she meets the one and only Percy Jackson. When he takes her to Camp something unexpected happens. They learn that she is a daughter of Posieden.Not only that but also she is one of the most powerful deimgod in the world. What happens when she, Nico di Angleo, and Liz Green {daughter of Hades} have to go on a quest to save The Seven from a powerful monster. I guess you have to read to find out! {I don't own the HOO or PJO characters, expect my own people. Also this is my first book. Hope you like it!}