Charlotte had been on her way to visit Kat because she was in the neighbourhood after spending the night with her friend Brad. On the off chance Kat was at work, Charlotte planned to drop in and chatter at her.
Instead of finding Kat, she found someone coming out of the shop. "Oh sorry!" she said, moving out of the person's way. "Do...were you just inside the shop?" She figured even if the person was a customer, they might know Kat. A shop like Hecate's was fairly niche. "I was looking for Kat if she was in."