Description: The Shadow Out of Time indirectly tells of the Great Race of Yith, an extraterrestrial species with the ability to travel through space and time. The Yithians accomplish this by switching bodies with hosts from the intended spatial or temporal destination. The story implies that the effect when seen from the outside is similar to spiritual possession. It is never revealed what the Yithians originally looked like. The cone-shaped bodies they used on Earth belonged to a species from a parallel line of life that had evolved alongside with other forms on the planet, the minds of which the Yithians had replaced with their own in a massive exodus.