"Nothing that involves informants and contacts," Rahel answered with a sideways glance. She might not have been the most worldly person he'd ever met, but she was quick enough to pick up what little information was offered and put it together. Either he was a dealer or a policeman, if Law and Order was to be believed. She was inclined to say the latter, but appearances could be deceiving and she hugged the strap on her bag closer to her side.
After a pause, she went on: "Math. Statistics, sometimes. This time it's just going to be pure math."