Tilly went to see Dr Jarman again the following morning. This time she was determined to ask him before he got distracted. He was sitting behind his desk, looking a little calmer that he had the day before. He stood up and shook Tilly's hand vigorously. "Well done, Mrs - Tilly. You've passed all the tests with flying colours." "Yes, but I wanted to ask-" "In fact, you've come out higher than anyone else. Higher than most of the staff, for that matter," "But, surely," said Tilly, "you gave me the wrong tests. They were far too easy." "Not at all. Not at all. Standard memory and IQ tests. Have you any idea what your IQ was before the Alzheimer's?" Tilly shook her head. "The last exams I did were for my nursing qualifications. I didn't have any trouble with those. But that was a long