Walking Spirits

Walking Spirits 1) This is how Bopho the Neandethal and Wilto of the Naked Tribe call the high tech alien invaders. A they do things neither Bopho nor Wilto can explain. 2) Native American settlers on Planet Spotted Plain encountered projections of an ancient civilization and called them walking Spirits. (Galactic Chronicles 11: Eric Olafson, Odyssey )