The Books Insiderindependent audiobook data
The Ninth Metal by Benjamin Percy

The Ninth Metal: Audiobook

Book 1 of the Comet Cycle series

According to The Books Insider's catalog data, The Ninth Metal runs 10.3 hours as an unabridged audiobook, narrated by Julia Whelan (about 6.8 hours at 1.5× playback speed).

10.3listening hrs
Literary Fictionstore shelf
2021released
Free for new listeners

The instrument When will you finish it?

Based on 10.3 hours of listening.

Days to finish The Ninth Metal at common listening paces
Your paceYou'll finish in
30 min / day21 days
1 hour / day11 days
2 hours / day6 days
1 hour / day at 1.5×7 days

Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.

What our data says

  • At 10.3 hours, it runs longer than 63% of the 14,520 Literary Fiction audiobooks in our catalog.

Catching up on The Comet Cycle

This is book 1. Books 1 to 3 run 28 hours in all.

BookTitleLength
1The Ninth Metal10.3 hrs
2The Unfamiliar Garden7.3 hrs
3The Sky Vault10.5 hrs

More narrated by Julia Whelan

Julia Whelan narrates 408 unabridged audiobooks in our catalog, 3,883 hours in all.

All Julia Whelan audiobooks, measured

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 Ninth Metal is book 1 of Benjamin Percy's Comet Cycle series: a 10.3-hour unabridged recording, read by Julia Whelan, released June 1, 2021, on the Literary Fiction and Apocalyptic & Dystopian shelves.

The listen at a glance

Length
10.3 hrs
Narrated by
Julia Whelan
Released
June 1, 2021
Format
Unabridged audiobook
Language
English
Store shelves
Literary Fiction, Apocalyptic & Dystopian, Science Fiction
Series
The Comet Cycle #1
ISBN
9780358450528

How to listen to The Ninth Metal 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 free

Questions listeners ask

How long is The Ninth Metal as an audiobook?

The Ninth Metal runs 10.3 hours unabridged. At 1.5× speed that drops to roughly 6.8 hours.

Is The Ninth Metal free as an audiobook?

Yes, for new listeners: the trial starts you with three free audiobooks.

Who narrates The Ninth Metal?

The Ninth Metal is narrated by Julia Whelan.

Is The Ninth Metal worth listening to at 1.5× speed?

At 1.5× you'd finish in about 6.8 hours, saving 3.4 hours.