Shadow Out of Time, Paperback by Lovecraft, H. P., ISBN 1523262885, ISBN-13 9781523262885, Brand New, Free shipping in the US

The Shadow Out of Time is a classic American horror story by H. P. Lovecraft. An indirect explanation 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.