Book about a teenager and alien
70546
Children's sci-fi book with an alien named Yacob looking for a kid with technology
18560
YA novel where clumsy boy gains wings
81779
Name of book about a man who was genetically modified during prehistoric times by aliens
155471
Early 80s anthology book about human kind being feared by other races in space
139418
Looking for a short story about an insect-like alien captured by humans on its own planet
79400
80's or 90's TV Movie about a teenage alien girl with white hair, who stays on Earth for a ranch/farm boy she loves
26391
SF Story about human adapting to alien environment
132781
Short story about a teenager who has his brain replaced with a microchip (Psychological Horror)
116839
Novel about alien species made of gas rings?
81915
70s(?) science fiction novel: teenage boy builds his own spacecraft which pulls/pushes gravity, is stranded on Mars when a vacuum tube burns out
155841
Sci fi novel about a reptilian assassin and a hacker kid
94161
Trying to remember title of a book about people on an asteroid/comet
67904
Young Adult book about kids being bred for genetic purity in a world where races no longer exist
54867
Trying to find a book about kids with 'sunguns' revolting against alien overlords
58614
Book about space alien cats
67118
Short story about alien invasion with a twist.
141480
Help identifing a book about people exiled to the distant past