Day 21: Audiobook
Book 2 of the 100 series
According to The Books Insider's catalog data, the Day 21 audiobook runs 6.5 hours unabridged, narrated by Phoebe Strole and Justin Torres (about 4.3 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 6.5 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 13 days |
| 1 hour / day | 7 days |
| 2 hours / day | 4 days |
| 1 hour / day at 1.5× | 5 days |
You'll finish in – by –
Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.
What our data says
- At 6.5 hours, it is shorter than 80% of the 5,647 Sci-Fi, Fantasy & Paranormal audiobooks in our catalog.
Catching up on The 100
This is book 2. Book 1 runs 10 hours before it; books 1 to 4 run 30 hours in all.
| Book | Title | Length |
|---|---|---|
| 1 | The 100: Love, Power, and Survival Collide in This Addictive Dystopian Story | 10 hrs |
| 2 | Day 21 | 6.5 hrs |
| 3 | Homecoming | 7.5 hrs |
| 4 | Rebellion | 6 hrs |
More narrated by Phoebe Strole
Phoebe Strole narrates 118 unabridged audiobooks in our catalog, 1,042 hours in all.
About as long, on the Sci-Fi, Fantasy & Paranormal shelf
534 Sci-Fi, Fantasy & Paranormal audiobooks in our catalog run within 10% of this length. The most popular on the store:
Computed from 409,794 English-language unabridged audiobooks in The Books Insider catalog (store data read November 3, 2026). Lengths are the store's own running times. Methodology.
About this listen
Day 21 is book 2 of Kass Morgan's 100 series: a 6.5-hour unabridged recording, read by Phoebe Strole and Justin Torres, released September 16, 2014, on the Sci-Fi, Fantasy & Paranormal and Action & Adventure (Teen & YA) shelves.
The listen at a glance
- Length
- 6.5 hrs
- Narrated by
- Phoebe Strole, Justin Torres
- Released
- September 16, 2014
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Sci-Fi, Fantasy & Paranormal, Action & Adventure (Teen & YA), Tough Topics
- Series
- The 100 #2
- ISBN
- 9781478955627
How to listen to Day 21 free
New members at audiobooks.com get three free audiobooks with the trial.
Separately, the store's catalog carries more than 10,000 audiobooks that are always free to stream.
Start listening freeQuestions listeners ask
How long is the Day 21 audiobook?
Day 21 runs 6.5 hours unabridged. At 1.5× speed that drops to roughly 4.3 hours.
Is the Day 21 audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Day 21?
Day 21 is narrated by Phoebe Strole and Justin Torres.