Madam Vulpes smiled. "They are very strong tonight. You are lucky. They want you to write down the name of the spirit you wish to talk to." I tore a piece of paper out of my notebook and wrote down a name. I didn't show it to Madame Vulpes. After a moment, Madame Vulpes' hand began to shake so hard the table moved. She said a spirit was now holding her hand and would write me a message. I gave her paper and a pencil. She wrote something and gave the paper to me. The message read: "I am here. Question me." I was signed "Leeuwenhoek." I couldn't believe my eyes. The name was the same one I had written on my piece of paper. I was sure that an ignorant woman like Madame Vulpes would not know who Leeuwenhoek was. Why would she know the name of the man who invented the microscope? Quickly, I wrote a question on another piece of paper. "How can I create the perfect lens?" Leeuwenhoek wrote back: "Find a diamond of one hundred and forty carats. Give it a strong electrical charge. The electricity will change the diamond's atoms. From that stone you can form the perfect lens." I left Madame Vulpes' house in a state of painful excitement. Where would I find a diamond that large? All my family's money could not buy a diamond like that. And even if I had enough money, I knew that such diamonds are very difficult to find.