Harry Potter and the Neut Union

Harry takes control of his own life after a mark appears on his right forearm during the summer. He and his friends intend to create a new side of the war. The Neut Union is born. But right under his nose, other things are happening. Things he'd never believe. His snake is dark, his 'tattoo' is more than it seems, and a not so manic Dark Lord is watching his every move. AN: LV/HP.