The Books Insiderindependent audiobook data
The Dark Frontier: Unlocking the Secrets of the Deep Sea by Jeffrey Marlow

The Dark Frontier: Unlocking the Secrets of the Deep Sea: Audiobook

According to The Books Insider's catalog data, The Dark Frontier: Unlocking the Secrets of the Deep Sea runs 14.7 hours as an unabridged audiobook, narrated by Vikas Adam (about 9.8 hours at 1.5× playback speed).

14.7listening hrs
Memoirsstore shelf
2026released
Free for new listeners

The instrument When will you finish it?

Based on 14.7 hours of listening.

Days to finish The Dark Frontier: Unlocking the Secrets of the Deep Sea at common listening paces
Your paceYou'll finish in
30 min / day30 days
1 hour / day15 days
2 hours / day8 days
1 hour / day at 1.5×10 days

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

What our data says

  • At 14.7 hours, it runs longer than 96% of the 10,266 Memoirs audiobooks in our catalog.

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 Dark Frontier: Unlocking the Secrets of the Deep Sea is an audiobook by Jeffrey Marlow: a 14.7-hour unabridged recording, read by Vikas Adam, released April 7, 2026, on the Memoirs and Animals & Nature (Non-Fiction) shelves.

The listen at a glance

Length
14.7 hrs
Narrated by
Vikas Adam
Released
April 7, 2026
Format
Unabridged audiobook
Language
English
Store shelves
Memoirs, Animals & Nature (Non-Fiction), Biology & Chemistry
ISBN
9798217078752

How to listen to The Dark Frontier: Unlocking the Secrets of the Deep Sea free

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Questions listeners ask

How long is The Dark Frontier: Unlocking the Secrets of the Deep Sea as an audiobook?

The Dark Frontier: Unlocking the Secrets of the Deep Sea runs 14.7 hours unabridged. At 1.5× speed that drops to roughly 9.8 hours.

Is The Dark Frontier: Unlocking the Secrets of the Deep Sea free as an audiobook?

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

Who narrates The Dark Frontier: Unlocking the Secrets of the Deep Sea?

The Dark Frontier: Unlocking the Secrets of the Deep Sea is narrated by Vikas Adam.

Is The Dark Frontier: Unlocking the Secrets of the Deep Sea worth listening to at 1.5× speed?

At 1.5× you'd finish in about 9.8 hours, saving 4.9 hours.