Mirrors (Avatar FanFic)

Katara has been through too much pain and now when she looks in the mirror she is nothing but a ghost of a girl who once was. There is no one to argue because she's put walls up around her heart. No one can see past them. Except one, the one she doesn't trust above all others. But what if he's the only one who can chase her pain away? Zutara. One-shot/Might continue upon request.