Le Prince sees the publication of his US Patent for a multi-lens camera. His excitement must have been mixed with apprehension as his designs were put into the public domain and suddenly available to potential rivals. And in Leeds, things were complicated: not only was he struggling to get a working projector for his multi-lens sequences, he had had some kind of eureka moment at the very end of 1887. What was it? This episode explores Le Prince's work from the end of 1887 to the beginning of 1888.