After escaping from Voldemort, Regulus is determined to hunt down the other horcruxes with the help of Sirius, Marlene, James and Lily. But things are less than simple as Regulus grapples with his own guilt, rekindling a relationship with his brother and working out how they're meant to break into the most secure building in Britain. Sequel to IWNBB but can be read alone

Regulus Black expected to die fetching that cursed horcrux from the cave. He didn't expect to captured by those he once called friends. He didn't expect his new cellmate to be James Potter.

Surely, any wizard who knows pureblood circles, knows you're nothing to someone unless you can name their second cousin three times removed, as well as know exactly who in their family not to mention at dinner. Who was this Dark Lord's second cousin three times removed? And why was he clearly not mentioning any of his family at dinner? Regulus means to find out.