The World's Most Famous Lemon

You are officially the world's most famous lemon. The area is declared a crime scene. The members are arrested and you are made rich as a reward from the police. So where to go now? We'll go to the garden centre and ask about lemons. And then let's leave this time and see what happens. Let's go to the green grocers then. Okay, so the green grocer knows about lemon. Brilliant. He says he gets his lemons from a mystic in the middle of London. A mystic is like a sort of a, how would I describe a mystic?