The Most Important Rule: Audiobook
Book 9 of the Zombie Rules series
According to The Books Insider's catalog data, The Most Important Rule runs 9.8 hours as an unabridged audiobook, narrated by Graham Halstead (about 6.6 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 9.8 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 20 days |
| 1 hour / day | 10 days |
| 2 hours / day | 5 days |
| 1 hour / day at 1.5× | 7 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 9.8 hours, it runs longer than 59% of the 3,417 Apocalyptic & Dystopian audiobooks in our catalog.
Catching up on Zombie Rules
This is book 9. Books 1 to 8 run 94.5 hours before it; books 1 to 9 run 104.3 hours in all.
| Book | Title | Length |
|---|---|---|
| 1 | Zombie Rules | 10.6 hrs |
| 2 | Z14 | 13.2 hrs |
| 3 | ZFINITY | 13 hrs |
| 4 | Destiny | 14.8 hrs |
| 5 | Mount Weather | 11 hrs |
| 6 | Fever!: Zombie Rules Book 6 | 10.8 hrs |
| 7 | Fifteens | 10.8 hrs |
| 8 | Who the Hell is That? | 10.2 hrs |
| 9 | The Most Important Rule | 9.8 hrs |
More narrated by Graham Halstead
Graham Halstead narrates 424 unabridged audiobooks in our catalog, 4,479 hours in all.
About as long, on the Apocalyptic & Dystopian shelf
613 Apocalyptic & Dystopian 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
The Most Important Rule is book 9 of David Achord's Zombie Rules series: a 9.8-hour unabridged recording, read by Graham Halstead, released January 28, 2025, on the Apocalyptic & Dystopian shelf.
The listen at a glance
- Length
- 9.8 hrs
- Narrated by
- Graham Halstead
- Released
- January 28, 2025
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Apocalyptic & Dystopian
- Series
- Zombie Rules #9
- ISBN
- 9798331918903
How to listen to The Most Important Rule 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 Most Important Rule as an audiobook?
The Most Important Rule runs 9.8 hours unabridged. At 1.5× speed that drops to roughly 6.6 hours.
Is The Most Important Rule free as an audiobook?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates The Most Important Rule?
The Most Important Rule is narrated by Graham Halstead.