The Books Insiderindependent audiobook data
The Undetectables by Courtney Smyth

The Undetectables: Audiobook

Book 1 of the Undetectables series

According to The Books Insider's catalog data, The Undetectables runs 12.6 hours as an unabridged audiobook, narrated by Matthew Lloyd Davies (about 8.4 hours at 1.5× playback speed).

12.6listening hrs
LGBTQ+ (Fiction)store shelf
2024released
Free for new listeners

The instrument When will you finish it?

Based on 12.6 hours of listening.

Days to finish The Undetectables at common listening paces
Your paceYou'll finish in
30 min / day26 days
1 hour / day13 days
2 hours / day7 days
1 hour / day at 1.5×9 days

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

What our data says

  • At 12.6 hours, it runs longer than 88% of the 2,490 LGBTQ+ (Fiction) audiobooks in our catalog.

Catching up on Undetectables

This is book 1. Books 1 to 3 run 39.2 hours in all.

BookTitleLength
1The Undetectables12.6 hrs
2The Undead Complex13.7 hrs
3The Unfathomable Curse13 hrs

About as long, on the LGBTQ+ (Fiction) shelf

249 LGBTQ+ (Fiction) 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 Undetectables is book 1 of Courtney Smyth's Undetectables series: a 12.6-hour unabridged recording, read by Matthew Lloyd Davies, released December 31, 2024, on the LGBTQ+ (Fiction) shelf.

The listen at a glance

Length
12.6 hrs
Narrated by
Matthew Lloyd Davies
Released
December 31, 2024
Format
Unabridged audiobook
Language
English
Store shelves
LGBTQ+ (Fiction)
Series
Undetectables #1
ISBN
9798855512663

How to listen to The Undetectables 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 Undetectables as an audiobook?

The Undetectables runs 12.6 hours unabridged. At 1.5× speed that drops to roughly 8.4 hours.

Is The Undetectables free as an audiobook?

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

Who narrates The Undetectables?

The Undetectables is narrated by Matthew Lloyd Davies.

Is The Undetectables worth listening to at 1.5× speed?

At 1.5× you'd finish in about 8.4 hours, saving 4.2 hours.