From the pen of the versatile Spanish Nobel Laureate, Santiago Ram n y Cajal (1852-1934), the visionary of science, also known as the "Don Quixote of the Microscope," comes this unfinished fantasy dream, written around 1880. The text appears in English for the first time, accompanied by a brief editorial annotation. Inspired by Claude Bernard's discussion of the 'resurrection' of Rotifera and Tardigrada, Cajal dreams of having stayed inside a forgotten...