The Books Insiderindependent audiobook data
Catalyst by Michael C. Grumley

Catalyst: Audiobook

Book 3 of the Breakthrough series

According to The Books Insider's catalog data, the Catalyst audiobook runs 13.1 hours unabridged, narrated by Scott Brick (about 8.8 hours at 1.5× playback speed).

13.1listening hrs
Action & Adventure (Fiction)store shelf
2019released
Free for new listeners

The instrument When will you finish it?

Based on 13.1 hours of listening.

Days to finish Catalyst at common listening paces
Your paceYou'll finish in
30 min / day27 days
1 hour / day14 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 13.1 hours, it runs longer than 83% of the 6,730 Action & Adventure (Fiction) audiobooks in our catalog.

Catching up on Breakthrough

This is book 3. Books 1 to 2 run 22.4 hours before it; books 1 to 6 run 76 hours in all.

BookTitleLength
1Breakthrough10.1 hrs
2Leap12.3 hrs
3Catalyst13.1 hrs
4Ripple12.4 hrs
5Mosaic17.6 hrs
6Echo10.4 hrs

About as long, on the Action & Adventure (Fiction) shelf

807 Action & Adventure (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

Catalyst is book 3 of Michael C. Grumley's Breakthrough series: a 13.1-hour unabridged recording, read by Scott Brick, released February 22, 2019, on the Action & Adventure (Fiction) shelf.

The listen at a glance

Length
13.1 hrs
Narrated by
Scott Brick
Released
February 22, 2019
Format
Unabridged audiobook
Language
English
Store shelves
Action & Adventure (Fiction)
Series
Breakthrough #3
ISBN
9781980035664

How to listen to Catalyst 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 Catalyst audiobook?

Catalyst runs 13.1 hours unabridged. At 1.5× speed that drops to roughly 8.8 hours.

Is the Catalyst audiobook free?

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

Who narrates Catalyst?

Catalyst is narrated by Scott Brick.

Is Catalyst worth listening to at 1.5× speed?

At 1.5× you'd finish in about 8.8 hours, saving 4.4 hours.