Depths Explored

Fawkes heals Harry and Ginny, and then flames out of the Chamber of Secrets. They, along with the sorting hat and sword get stuck in the Chamber for a summer together with Ron and Lockhart, once they clear the rocks between them, and the three kids develop a sibling-esque bond and explore (and figure out how to leave) the chamber over the summer. Kidfic with a side of crack.