The Cathedral of Ash: Enter a chilling world of biological quotas and lethal sedations in this gripping Dystopian Fiction thriller. One surgeon must risk the execution platforms to forge a subterranean sanctuary.: Audiobook
Book 3 of the Mercy Index series
According to The Books Insider's catalog data, The Cathedral of Ash: Enter a chilling world of biological quotas and lethal sedations in this gripping Dystopian Fiction thriller. One surgeon must risk the execution platforms to forge a subterranean sanctuary. runs 10 hours as an unabridged audiobook, narrated by John Newbill (about 6.7 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 10 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 10 hours, it runs longer than 61% of the 3,417 Apocalyptic & Dystopian audiobooks in our catalog.
Catching up on The Mercy Index
This is book 3. Books 1 to 2 run 18.2 hours before it; books 1 to 3 run 28.3 hours in all.
More narrated by John Newbill
John Newbill narrates 31 unabridged audiobooks in our catalog, 262 hours in all.
- The Novice & The Guardian: An Epic Dark Fantasy of a Corrupt Church, Monstrous Sacrifices, and the Forbidden Bond That Could Break the Chains of a Nightmare.
- The Hunter & The Behemoth: A Gripping Dark Fantasy Epic of Broken Vows, Corrupt Clerics, and an Unlikely Alliance Between a Lethal Guild Assassin and the Beast He Was Sworn to Kill.
- The Architect & The Oracle: An Epic Dark Fantasy of Monstrous Architecture and Betrayal. Discover the chilling truth behind a sanctuary built on living, conscious souls—and the master builder sworn to tear it down.
- Sparks and Shattered Glass: A Gripping Gaslamp Fantasy: When a Magic Glassmaker Uncovers a Dead Woman's Secrets, Her Entire Village Threatens to Burn
- Spiced Cider and Rising Tides: A Gripping Dark Fantasy Mystery: Stranded Fugitives, Forged Documents, and a Locked-Room Escape During the Great Morrowfen Flood
About as long, on the Apocalyptic & Dystopian shelf
608 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 Cathedral of Ash: Enter a chilling world of biological quotas and lethal sedations in this gripping Dystopian Fiction thriller. One surgeon must risk the execution platforms to forge a subterranean sanctuary. is book 3 of John Newbill's Mercy Index series: a 10-hour unabridged recording, read by John Newbill, released April 10, 2026, on the Apocalyptic & Dystopian shelf.
The listen at a glance
- Length
- 10 hrs
- Narrated by
- John Newbill
- Released
- April 10, 2026
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Apocalyptic & Dystopian
- Series
- The Mercy Index #3
- ISBN
- 9780466788834
How to listen to The Cathedral of Ash: Enter a chilling world of biological quotas and lethal sedations in this gripping Dystopian Fiction thriller. One surgeon must risk the execution platforms to forge a subterranean sanctuary. 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 Cathedral of Ash: Enter a chilling world of biological quotas and lethal sedations in this gripping Dystopian Fiction thriller. One surgeon must risk the execution platforms to forge a subterranean sanctuary. as an audiobook?
The Cathedral of Ash: Enter a chilling world of biological quotas and lethal sedations in this gripping Dystopian Fiction thriller. One surgeon must risk the execution platforms to forge a subterranean sanctuary. runs 10 hours unabridged. At 1.5× speed that drops to roughly 6.7 hours.
Is The Cathedral of Ash: Enter a chilling world of biological quotas and lethal sedations in this gripping Dystopian Fiction thriller. One surgeon must risk the execution platforms to forge a subterranean sanctuary. free as an audiobook?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates The Cathedral of Ash: Enter a chilling world of biological quotas and lethal sedations in this gripping Dystopian Fiction thriller. One surgeon must risk the execution platforms to forge a subterranean sanctuary.?
The Cathedral of Ash: Enter a chilling world of biological quotas and lethal sedations in this gripping Dystopian Fiction thriller. One surgeon must risk the execution platforms to forge a subterranean sanctuary. is narrated by John Newbill.
Is The Cathedral of Ash: Enter a chilling world of biological quotas and lethal sedations in this gripping Dystopian Fiction thriller. One surgeon must risk the execution platforms to forge a subterranean sanctuary. worth listening to at 1.5× speed?
At 1.5× you'd finish in about 6.7 hours, saving 3.3 hours.