The Books Insiderindependent audiobook data
Castor Pollux: The Adventure on the Prison Planet: A tale of the Imperium universe by Dennis Yépez

Castor Pollux: The Adventure on the Prison Planet: A tale of the Imperium universe: Audiobook

Book 1 of the Imperium Saga: Castor Pollux series

According to The Books Insider's catalog data, the Castor Pollux: The Adventure on the Prison Planet: A tale of the Imperium universe audiobook runs 0.9 hours unabridged, narrated by Raymond Kallai (about 0.6 hours at 1.5× playback speed).

0.9listening hrs
Science Fictionstore shelf
2025released
Free for new listeners

The instrument When will you finish it?

Based on 0.9 hours of listening.

Days to finish Castor Pollux: The Adventure on the Prison Planet: A tale of the Imperium universe at common listening paces
Your paceYou'll finish in
30 min / day2 days
1 hour / day1 day
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 0.9 hours, it is shorter than 94% of the 13,269 Science Fiction audiobooks in our catalog.

Catching up on Imperium Saga: Castor Pollux

This is book 1. Books 1 to 2 run 1.9 hours in all.

About as long, on the Science Fiction shelf

134 Science 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

Castor Pollux: The Adventure on the Prison Planet: A tale of the Imperium universe is book 1 of Dennis Yépez's Imperium Saga: Castor Pollux series: a 0.9-hour unabridged recording, read by Raymond Kallai, released August 27, 2025, on the Science Fiction and Space Opera shelves.

The listen at a glance

Length
0.9 hrs
Narrated by
Raymond Kallai
Released
August 27, 2025
Format
Unabridged audiobook
Language
English
Store shelves
Science Fiction, Space Opera
Series
Imperium Saga: Castor Pollux #1
ISBN
9798318472145

How to listen to Castor Pollux: The Adventure on the Prison Planet: A tale of the Imperium universe free

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Questions listeners ask

How long is the Castor Pollux: The Adventure on the Prison Planet: A tale of the Imperium universe audiobook?

Castor Pollux: The Adventure on the Prison Planet: A tale of the Imperium universe runs 0.9 hours unabridged. At 1.5× speed that drops to roughly 0.6 hours.

Is the Castor Pollux: The Adventure on the Prison Planet: A tale of the Imperium universe audiobook free?

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

Who narrates Castor Pollux: The Adventure on the Prison Planet: A tale of the Imperium universe?

Castor Pollux: The Adventure on the Prison Planet: A tale of the Imperium universe is narrated by Raymond Kallai.