The Books Insiderindependent audiobook data
The Hidden Threat by Martha Carr, Michael Anderle

The Hidden Threat: Audiobook

Book 3 of the Izzie Berens: Arcane Enforcer series

According to The Books Insider's catalog data, The Hidden Threat runs 7.7 hours as an unabridged audiobook, narrated by Cassidy Brown (about 5.1 hours at 1.5× playback speed).

7.7listening hrs
Fantasystore shelf
2025released
Free for new listeners

The instrument When will you finish it?

Based on 7.7 hours of listening.

Days to finish The Hidden Threat 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 7.7 hours, it is shorter than 60% of the 12,109 Fantasy audiobooks in our catalog.

Catching up on Izzie Berens: Arcane Enforcer

This is book 3. Books 1 to 2 run 15.9 hours before it; books 1 to 8 run 63.3 hours in all.

About as long, on the Fantasy shelf

1,633 Fantasy 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 Threat is book 3 of Martha Carr's Izzie Berens: Arcane Enforcer series: a 7.7-hour unabridged recording, read by Cassidy Brown, released July 15, 2025, on the Fantasy and Paranormal shelves.

The listen at a glance

Length
7.7 hrs
Narrated by
Cassidy Brown
Released
July 15, 2025
Format
Unabridged audiobook
Language
English
Store shelves
Fantasy, Paranormal
Series
Izzie Berens: Arcane Enforcer #3
ISBN
9798331941987

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

The Hidden Threat runs 7.7 hours unabridged. At 1.5× speed that drops to roughly 5.1 hours.

Is The Hidden Threat free as an audiobook?

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

Who narrates The Hidden Threat?

The Hidden Threat is narrated by Cassidy Brown.