Teen Sci-Fi book probably from 80's possibly early 90's - aliens help a teenager on Earth
46628
A story about a whole crew of aliens who visit Earth, befriend a child
134811
Story involving teenager being recruited to travel to different worlds
46635
Book series about aliens who put "caps" on people to control them
26391
SF Story about human adapting to alien environment
89070
Unknown Science Fiction Space Book
150922
Identification of a sci-fi book or book series based on the description of two alien races
80328
YA novel - kid finds some kind of time traveling creature
29033
Eighties post-apocalyptic book series with teleporters
31439
Book series my dad told me about. It involves space travel, clones, and an indigenous people with kangaroo tails
65836
Identify a story about a teen boy who learns to use magic with his lizard companion
97147
Short story about aliens who invade Earth and are baffled by the climate
118738
Need help to find a sci-fi collection I read at school (mid 80s)
5178
Novel with an alien rabbit invasion
118194
Looking for the title of a book about alien invasion, mining asteroids and using lasers to defend earth
92271
70s/80s Sci-Fi book with teleport gates on sub-light spacecraft and an army space suit
17389
Need help recalling name of sci-if story about earth evolving into electronic life forms
11855
Hunger games style alien book