The Books Insiderindependent audiobook data
The Hidden Knife by Melissa Marr

The Hidden Knife: Audiobook

According to The Books Insider's catalog data, The Hidden Knife runs 6.9 hours as an unabridged audiobook, narrated by Kelsey Griffin (about 4.6 hours at 1.5× playback speed).

6.9listening hrs
Non-fiction (Kids)store shelf
2021released
Free for new listeners

The instrument When will you finish it?

Based on 6.9 hours of listening.

Days to finish The Hidden Knife at common listening paces
Your paceYou'll finish in
30 min / day14 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 6.9 hours, it runs longer than 88% of the 14,091 Non-fiction (Kids) audiobooks in our catalog.

About as long, on the Non-fiction (Kids) shelf

1,109 Non-fiction (Kids) audiobooks in our catalog run within 10% of this length. The most popular on the store:

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 Hidden Knife is an audiobook by Melissa Marr: a 6.9-hour unabridged recording, read by Kelsey Griffin, released June 1, 2021, on the Mystery & Fantasy and Non-fiction (Kids) shelves.

The listen at a glance

Length
6.9 hrs
Narrated by
Kelsey Griffin
Released
June 1, 2021
Format
Unabridged audiobook
Language
English
Store shelves
Mystery & Fantasy, Non-fiction (Kids)
ISBN
9780593341575

How to listen to The Hidden Knife 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 Hidden Knife as an audiobook?

The Hidden Knife runs 6.9 hours unabridged. At 1.5× speed that drops to roughly 4.6 hours.

Is The Hidden Knife free as an audiobook?

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

Who narrates The Hidden Knife?

The Hidden Knife is narrated by Kelsey Griffin.