Shadow Out of Time, Paperback by Lovecraft, H. P., ISBN 1533387230, ISBN-13 9781533387233, Like New Used, Free shipping in the US

"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.