Fourth Mansions (Ace SF Special, 24590)

Take a trip through a near-psychedelic reality, with: ~ ~~ ~ Seven very special people blending to create a higher form of humanity; A laughing man living alone on a mountaintop, guarding the world; The Returnees: men who live again and again, century after century; A dog-ape "Plappergeist," who can only be seen out of the corner of one's eye; And a young man named Foley, very much like you and me, who begins to find out about the above people and things, and how they are reshaping the world!