The Books Insiderindependent audiobook data
Betrayer of Worlds by Edward M. Lerner, Larry Niven

Betrayer of Worlds: Audiobook

Book 4 of the Ringworld Prequels series

According to The Books Insider's catalog data, the Betrayer of Worlds audiobook runs 9.6 hours unabridged, narrated by Tom Weiner (about 6.4 hours at 1.5× playback speed).

9.6listening hrs
Science Fictionstore shelf
2010released
Free for new listeners

The instrument When will you finish it?

Based on 9.6 hours of listening.

Days to finish Betrayer of Worlds at common listening paces
Your paceYou'll finish in
30 min / day20 days
1 hour / day10 days
2 hours / day5 days
1 hour / day at 1.5×7 days

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

What our data says

  • At 9.6 hours, it runs longer than 57% of the 13,269 Science Fiction audiobooks in our catalog.

Catching up on The Ringworld Prequels

This is book 4. Books 1 to 3 run 33.5 hours before it; books 1 to 4 run 43.1 hours in all.

BookTitleLength
1Fleet of Worlds9.6 hrs
2Juggler of Worlds12.9 hrs
3Destroyer of Worlds11 hrs
4Betrayer of Worlds9.6 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

Betrayer of Worlds is book 4 of Edward M. Lerner's Ringworld Prequels series: a 9.6-hour unabridged recording, read by Tom Weiner, released October 12, 2010, on the Science Fiction and Space Opera shelves.

The listen at a glance

Length
9.6 hrs
Narrated by
Tom Weiner
Released
October 12, 2010
Format
Unabridged audiobook
Language
English
Store shelves
Science Fiction, Space Opera
Series
The Ringworld Prequels #4
ISBN
9781481587020

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Questions listeners ask

How long is the Betrayer of Worlds audiobook?

Betrayer of Worlds runs 9.6 hours unabridged. At 1.5× speed that drops to roughly 6.4 hours.

Is the Betrayer of Worlds audiobook free?

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

Who narrates Betrayer of Worlds?

Betrayer of Worlds is narrated by Tom Weiner.