Doyle assists his friend Reuben Proctor who has recently acquired an Egyptian mummy. They arrange for a gala evening at the museum where two eminent professors - Doyle's mentor Dr. Bell being one of them - will unveil the embalmed remains of the Egyptian princess and perform an autopsy. To everyone's surprise, they find not a princess but a man who was recently murdered. As they investigate, Doyle and Bell uncover a group of expatriate rebels plotting to create havoc. They work frantically to stop them before they spread terror among the population of London.
Did You Know?
Like Dr. Bell and Doyle, Scottish physiologist Professor William Rutherford existed in real life, being the inspiration for another one of Doyle's creations: Professor Challenger. Like Challenger, the show portrays Rutherford as an aggressive, rude and pretentious man. See more
The episode opens with a slide show performed by Mr. Im Thurn. With the first two slides, we can see their images as projected onto the screen while they are being loaded into the projector from the side. However, neither projected image conveys the actual movement of the slide into the projector. Also, as the first slide is being dropped into the projector's carrier, we can clearly see that it contains no image, in contrast with the projection of that slide, which does have an image. See more