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Day 21
Kass Morgan
science fiction
post-apocalyptic survival
past tense
third limited POV
~268 pp
high worldbuilding
Vibe
dystopian
tense
melancholic
A science fiction. Expect rich worldbuilding, dense, literary prose, epic scope. Plot-driven and deeply introspective. Contains notable violence, romance.
Books similar to Day 21
Matched by vibe, pacing, tone, and feel — not just genre.
Style Fingerprint
Prose density
75
sparsedense
Pacing
60
slow burnpropulsive
Emotional tone
30
darkhopeful
Worldbuilding
90
minimalmaximal
Char / plot
80
character-drivenplot-driven
Interiority
70
externalintrospective
Ending
40
unresolvedcathartic
Content
Sexual content
30%
noneexplicit
Speculative hardness
soft/vibes → hard sci-fi / rigorous magic
Structure & Cast
Structure
| Word count | 67,091 |
| Page count | ~268 pp |
| Prologue | — |
| Epilogue | — |
| Tense | past |