The Books Insiderindependent audiobook data
The Immortal Abyss by Katherine Briggs

The Immortal Abyss: Audiobook

Book 2 of the Threshold Duology series

According to The Books Insider's catalog data, The Immortal Abyss runs 12 hours as an unabridged audiobook, narrated by Rachanee Lumayno (about 8 hours at 1.5× playback speed).

12listening hrs
Sci-Fi, Fantasy & Paranormalstore shelf
2024released
Free for new listeners

The instrument When will you finish it?

Based on 12 hours of listening.

Days to finish The Immortal Abyss at common listening paces
Your paceYou'll finish in
30 min / day24 days
1 hour / day12 days
2 hours / day6 days
1 hour / day at 1.5×8 days

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

What our data says

  • At 12 hours, it runs longer than 75% of the 5,647 Sci-Fi, Fantasy & Paranormal audiobooks in our catalog.

Catching up on The Threshold Duology

This is book 2. Book 1 runs 13.6 hours before it; books 1 to 2 run 25.6 hours in all.

BookTitleLength
1The Eternity Gate13.6 hrs
2The Immortal Abyss12 hrs

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 Immortal Abyss is book 2 of Katherine Briggs's Threshold Duology series: a 12-hour unabridged recording, read by Rachanee Lumayno, released September 17, 2024, on the Sci-Fi, Fantasy & Paranormal shelf.

The listen at a glance

Length
12 hrs
Narrated by
Rachanee Lumayno
Released
September 17, 2024
Format
Unabridged audiobook
Language
English
Store shelves
Sci-Fi, Fantasy & Paranormal
Series
The Threshold Duology #2
ISBN
9781645559535

How to listen to The Immortal Abyss free

New members at audiobooks.com get three free audiobooks with the trial.

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Questions listeners ask

How long is The Immortal Abyss as an audiobook?

The Immortal Abyss runs 12 hours unabridged. At 1.5× speed that drops to roughly 8 hours.

Is The Immortal Abyss free as an audiobook?

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

Who narrates The Immortal Abyss?

The Immortal Abyss is narrated by Rachanee Lumayno.

Is The Immortal Abyss worth listening to at 1.5× speed?

At 1.5× you'd finish in about 8 hours, saving 4 hours.