The quest for Poseidons trident

Maddie and Kiera's lives get turned upside down when they learn that they are the children of gods, they are taken to a special school where they will be taught to use their new found abilities, but they are sent in an important quest by Poseidon to retrieve his Trident that has gone missing. Will they succeed? Will they die a horrible death? I don't know because I haven't thought that far ahead! I'm just posting this to see if I should keep writing it