Better the devil you know

only in Bella's pov for first few chapters, then switches to OC
The Romanians couldn't let go of the chance to destroy the volturi and attempt to recruit the Cullen's. When they refuse Ness is taken forcing them to call on old friends and the volturi to save her. But what happens when the volturi wants one of their friends? or when some of them want her for more than just her power?