The Books Insiderindependent audiobook data
Catalyst: Book 4.5 by Rachel Newhouse

Catalyst: Book 4.5: Audiobook

Book 4.5 of the Red Rain series

According to The Books Insider's catalog data, the Catalyst: Book 4.5 audiobook runs 1.5 hours unabridged, narrated by Neal Arango (about 1 hours at 1.5× playback speed).

1.5listening hrs
Teen & YAstore shelf
2025released
Free for new listeners

The instrument When will you finish it?

Based on 1.5 hours of listening.

Days to finish Catalyst: Book 4.5 at common listening paces
Your paceYou'll finish in
30 min / day3 days
1 hour / day2 days
2 hours / day1 day
1 hour / day at 1.5×1 day

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

What our data says

  • At 1.5 hours, it is shorter than 92% of the 17,065 Teen & YA audiobooks in our catalog.

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: Book 4.5 is book 4.5 of Rachel Newhouse's Red Rain series: a 1.5-hour unabridged recording, read by Neal Arango, released October 14, 2025, on the Teen & YA shelf.

The listen at a glance

Length
1.5 hrs
Narrated by
Neal Arango
Released
October 14, 2025
Format
Unabridged audiobook
Language
English
Store shelves
Teen & YA
Series
Red Rain #4.5
ISBN
9798891538443

How to listen to Catalyst: Book 4.5 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 Catalyst: Book 4.5 audiobook?

Catalyst: Book 4.5 runs 1.5 hours unabridged. At 1.5× speed that drops to roughly 1 hours.

Is the Catalyst: Book 4.5 audiobook free?

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

Who narrates Catalyst: Book 4.5?

Catalyst: Book 4.5 is narrated by Neal Arango.