The Books Insiderindependent audiobook data
Radiate by C.A. Higgins

Radiate: Audiobook

Book 3 of the Lightless series

According to The Books Insider's catalog data, the Radiate audiobook runs 12.4 hours unabridged, narrated by Fiona Hardingham (about 8.3 hours at 1.5× playback speed).

12.4listening hrs
Science Fictionstore shelf
2017released
Free for new listeners

The instrument When will you finish it?

Based on 12.4 hours of listening.

Days to finish Radiate at common listening paces
Your paceYou'll finish in
30 min / day25 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 12.4 hours, it runs longer than 78% of the 13,269 Science Fiction audiobooks in our catalog.

Catching up on The Lightless Trilogy

This is book 3. Books 1 to 2 run 24.1 hours before it; books 1 to 3 run 36.5 hours in all.

BookTitleLength
1Lightless11.6 hrs
2Supernova12.5 hrs
3Radiate12.4 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

Radiate is book 3 of C.A. Higgins's Lightless series: a 12.4-hour unabridged recording, read by Fiona Hardingham, released May 23, 2017, on the Action & Adventure (Fiction) and Science Fiction shelves.

The listen at a glance

Length
12.4 hrs
Narrated by
Fiona Hardingham
Released
May 23, 2017
Format
Unabridged audiobook
Language
English
Store shelves
Action & Adventure (Fiction), Science Fiction, Space Opera
Series
The Lightless Trilogy #3
ISBN
9781524782948

How to listen to Radiate 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 Radiate audiobook?

Radiate runs 12.4 hours unabridged. At 1.5× speed that drops to roughly 8.3 hours.

Is the Radiate audiobook free?

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

Who narrates Radiate?

Radiate is narrated by Fiona Hardingham.

Is Radiate worth listening to at 1.5× speed?

At 1.5× you'd finish in about 8.3 hours, saving 4.1 hours.