The Cardinal's Design

Rebecca has a friend of hers trying to decipher a secret code, behind the back of her superior. She is threatened with a scorpion in her bed, which she manages to kill. Phileas offers to help, but the codebreaker is killed under his protection by the mysterious Cavois. Cavois makes another attempt on Rebecca's life, which is thwarted by a bulletproof corset. Phileas tries to confront Cavois but is thwarted: Cavois leaves him for later. Meanwhile, Jules is meeting with his old friend Alexandre Dumas. It turns out he was a spy at one time, and created the code and hid the transcription code in his novel The Three Musketeers. Dumas is up to his ears in debt, in part because he is trying to build a machine, the Phoenix, based on designs by Cardinal Richelieu from 200 years earlier. The others meet up with Jules, and are forced to flee before Dumas' debtors. Passepartout inadvertently activates the time machine, and the four go back 200 years. As they step out to investigate, Passepartout inadvertently activates the time machine again, leaving the other three stranded. Worse, Rebecca is mistaken for an assassin and taken before Richelieu, who wants her to kill the king...

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S01E05 - The Cardinal's Revenge