"I think I can definitely help you." Katie said as she used her abilities to freeze the woman in time.
"Ah, good, you're using a freezing spell first so she won't question what's happening." Merlin commended.
"Thanks dad, but I'm not quite done yet. You know in all the years that I'm going to be learning magic, I'm going to need a familiar by my side." Katie said as she began transforming the 70 year old woman into an animal.
"Okay but just be sure you take good care of your familiar, you don't just treat them like pets, you treat them as you would any friend." Merlin told his daughter.
So Katie shrunk the woman into a small animal she would keep both as a pet and as a familiar that would help her in magic. Soon the woman who came into the store was no more and instead there was now