Book about an amphibian race at the centre of the Earth
7040
Teenagers find an ancient lizard creature in stasis and accompany him on adventures to an undersea city
3083
Looking for the title of a futuristic book about enforced equality
150922
Identification of a sci-fi book or book series based on the description of two alien races
17389
Need help recalling name of sci-if story about earth evolving into electronic life forms
2463
Story ID - Humans of various epochs are transported to a world
102575
Sci-fi book with HUGE trees and catlike people
12631
Novelette where human race divided into those with skin symbiote and those without
27989
A book in which every species on earth was rendered intelligent
105726
Book: World covered in trees that are miles high
76413
Looking for the title/author of story about snail-like creatures
156747
Book series with a double planet system and poisonous bubbles that float around
54446
Story about living planet linked to skin lesions
141480
Help identifing a book about people exiled to the distant past
101007
Short story from many years ago: the ancient, brilliant, cruel race was Earthlings
121599
Short story about a gigantic space monster that is big enough to cover half of the Earth
6599
Story about shapeshifting aliens trying to invade Earth, thwarted by biodiversity
61327
Book about a kingdom invaded by another world