Story about two-stage sentient beings and multiple dimensions
30124
Story about machines generating energy with parallel universes, endangering ours
126418
Story about encounter with hostile aliens
67118
Short story about alien invasion with a twist.
42386
Seeking a story about a subway train journey, through a universe made entirely of city
6002
Story (series) identification: Mind controlling satellite, a return to Earth, and two warring alien species
99076
Short story (maybe two in the same collection) about Alien education versus Earth
126070
Looking for an old story where humans conceal their newly-discovered psychic abilities from alien visitors
110960
ID a book about a mirror world and 4th dimension
51413
Protagonist becomes the avatar of an alien deity and has to cope with adversary god
45680
A science fiction story about a headdress that allows one human to control and experience another human's body
91051
Older science fiction book about time travel to retrieve things but they went sideways through the dimensions instead
136911
A story about the world split into three realms
101629
Story about a man and an alien exploring an alien world
84468
Short story where a character moves through dimensions via mental exercises
48420
Story with a supercomputer with a God complex
76018
Short Story About Contact With An Alien Race That Extruded An Elixir
9056
story about "souls" of deceased people implanted in other people