alternate worlds, war (2)
double, fantasy (2)
fantasy, fiction, hard sf (2)
sf, tbr (2)
sf, to read (2)
sf, to-read (2)
TBR, sf (2)
1960s, adventure, love (1)
1960s, adventure, novel, young adult (1)
1960s, audiobook, fantasy (1)
1960s, fantasy, fiction, young adult (1)
1960s, humor (1)
1960s, romance (1)
1960s, romance, young adult (1)
1963, fiction (1)
1980s, science fiction, time travel (1)
1990s, dragons, fantasy, science fiction (1)
2000s, hard sf, science fiction (1)
20th century, aliens, politics (1)
