"The prison," Rebekah said. "They send raiders out all of the time. Let's hope today's raiders are human." The prison with its shoddy security. Rebekah was certain she could reach right in and snatch them all up, kill them all anytime she wanted. So why wait? Patience was a force of habit at her age.
Besides she had to teach her disciples the art of snatch and snack somehow and it wasn't as if there a supply of humans anywhere else. It was only a matter of time before some idiot left the safety of the prison.