I read on a Harry Potter wiki that Death eaters were originally called The Knights of Walpurgis, hence that is what I will call them as well :) I think they later change to death eaters during the beginning of the war!

His goal after the break was to become a knight.

"The Knights of Walpurgis!" Carrow whispered. "I heard Lucius talking about it. Apparently he's one and he gets to choose the new ones."

"My fathers says only the best get in," Mulciber added. "Yaxely got a letter to join yesterday."

"But how?" Regulus asked. His father had warned him of this. He had to get in.

"I don't know," Karkaroff muttered. "But I do know this. They're watching our every move. Who we talk to, who we meet, what we do, what we say, everything."

Regulus understood.

Comments? What do you think?