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'''Longlisted for the CILIP Carnegie Medal 2013'''
In 1937 Amaryllis Ruben is about to turn seventeen. As a present, her father, Arnold Ruben, a widowed, multi-millionaire, is going to give his daughter his life long work, an invention that could alter time forever, a memory machine. It can capture the good, erase the bad, and keep you young for all time. But things aren't going to plan; apart from Amaryllis not wanting it, other people have taken an interest, and not in a good way.