Answer: Anderson repeats the phrase “ten circles to the left” because Isabel was cutting something or something metal for Becky because someone royal was coming.
Lockton’s face was mostly angry / shocked because Isabel isn’t supposed to say those types of things in front of Lockton since she's a slave.
Based on what I read , Isabel felt like a criminal because she wasn’t supposed to be outside unless her owner/master gave her a pass to go outside.