Identify this sci-fi book - young man, teleporters, alien planet survival?
29891
1970s space cadet training novel for young adults
125688
Name of the SciFi book where boy finds a crash-landed robot spaceship
51376
1970s (?) sci-fi book based on Hinduism/Buddhism
2832
Book series with college students finding a way to open portals to other planets
100531
Novel about a teleportation device and a con artist alien
81779
Name of book about a man who was genetically modified during prehistoric times by aliens
31439
Book series my dad told me about. It involves space travel, clones, and an indigenous people with kangaroo tails
67824
Book about a boy who travels to a parallel universe to get a book
6794
Book about aliens arriving in an old country; people capture their spaceship and arrive at alien's planet
45357
Science fiction/fantasy novel about a god returning to Earth to reclaim his powers
34550
Old Sci-Fi Novel where man uses horn to enter another world, learns he is a "god" of sorts?
101629
Story about a man and an alien exploring an alien world
67212
Young man discovers his home "world" is a spaceship
81413
A book about explorers stranded on a planet with two computers
50313
Novel where a man is paid to travel to a planet inside a metallic sphere
63545
Identify series of books about a hero chasing a body switching potion between planets
158928
Looking for a book, wormhole, space ship Crash landing