The Books Insiderindependent audiobook data
Heart's Keeper: Dark World Mates, Book 4 by Olivia Riley

Heart's Keeper: Dark World Mates, Book 4: Audiobook

Book 4 of the Dark World Mates series

According to The Books Insider's catalog data, the Heart's Keeper: Dark World Mates, Book 4 audiobook runs 6.2 hours unabridged, narrated by Zachary Johnson and Maxine Mitchell (about 4.1 hours at 1.5× playback speed).

6.2listening hrs
Romantasy (Romance)store shelf
2023released
Free for new listeners

The instrument When will you finish it?

Based on 6.2 hours of listening.

Days to finish Heart's Keeper: Dark World Mates, Book 4 at common listening paces
Your paceYou'll finish in
30 min / day13 days
1 hour / day7 days
2 hours / day4 days
1 hour / day at 1.5×5 days

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

What our data says

  • At 6.2 hours, it is shorter than 77% of the 7,781 Romantasy (Romance) audiobooks in our catalog.

Catching up on Dark World Mates

This is book 4. Books 1 to 3 run 31 hours before it; books 1 to 4 run 37.1 hours in all.

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

Heart's Keeper: Dark World Mates, Book 4 is book 4 of Olivia Riley's Dark World Mates series: a 6.2-hour unabridged recording, read by Zachary Johnson and Maxine Mitchell, released June 6, 2023, on the Romantasy (Romance) and Romantasy (Science Fiction & Fantasy) shelves.

The listen at a glance

Length
6.2 hrs
Narrated by
Zachary Johnson, Maxine Mitchell
Released
June 6, 2023
Format
Unabridged audiobook
Language
English
Store shelves
Romantasy (Romance), Romantasy (Science Fiction & Fantasy)
Series
Dark World Mates #4
ISBN
9781039429970

How to listen to Heart's Keeper: Dark World Mates, Book 4 free

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Questions listeners ask

How long is the Heart's Keeper: Dark World Mates, Book 4 audiobook?

Heart's Keeper: Dark World Mates, Book 4 runs 6.2 hours unabridged. At 1.5× speed that drops to roughly 4.1 hours.

Is the Heart's Keeper: Dark World Mates, Book 4 audiobook free?

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

Who narrates Heart's Keeper: Dark World Mates, Book 4?

Heart's Keeper: Dark World Mates, Book 4 is narrated by Zachary Johnson and Maxine Mitchell.