The Books Insiderindependent audiobook data
Lost Gems by Chris Niles

Lost Gems: Audiobook

Book 4 of the Shark Key Adventures series

According to The Books Insider's catalog data, the Lost Gems audiobook runs 7.6 hours unabridged, narrated by Kelsey-Ann O'dowd and Brian Meslar (about 5.1 hours at 1.5× playback speed).

7.6listening hrs
Action & Adventure (Fiction)store shelf
2021released
Free for new listeners

The instrument When will you finish it?

Based on 7.6 hours of listening.

Days to finish Lost Gems at common listening paces
Your paceYou'll finish in
30 min / day16 days
1 hour / day8 days
2 hours / day4 days
1 hour / day at 1.5×6 days

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

What our data says

  • At 7.6 hours, it is shorter than 61% of the 6,730 Action & Adventure (Fiction) audiobooks in our catalog.

Catching up on Shark Key Adventures

This is book 4. Books 1 to 3 run 21.1 hours before it; books 1 to 4 run 28.7 hours in all.

BookTitleLength
1Lost Key7.4 hrs
2Lost Relics6.4 hrs
3Lost Fleet7.3 hrs
4Lost Gems7.6 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

Lost Gems is book 4 of Chris Niles's Shark Key Adventures series: a 7.6-hour unabridged recording, read by Kelsey-Ann O'dowd and Brian Meslar, released October 14, 2021, on the Action & Adventure (Fiction) shelf.

The listen at a glance

Length
7.6 hrs
Narrated by
Kelsey-Ann O'dowd, Brian Meslar
Released
October 14, 2021
Format
Unabridged audiobook
Language
English
Store shelves
Action & Adventure (Fiction)
Series
Shark Key Adventures #4
ISBN
9781667097473

How to listen to Lost Gems 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.

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Questions listeners ask

How long is the Lost Gems audiobook?

Lost Gems runs 7.6 hours unabridged. At 1.5× speed that drops to roughly 5.1 hours.

Is the Lost Gems audiobook free?

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

Who narrates Lost Gems?

Lost Gems is narrated by Kelsey-Ann O'dowd and Brian Meslar.