The Books Insiderindependent audiobook data
Crisis on Citadel II by Ron Goulart, Alex Raymond

Crisis on Citadel II: Audiobook

Book 3 of the Flash Gordon series

According to The Books Insider's catalog data, the Crisis on Citadel II audiobook runs 4.2 hours unabridged, narrated by Johnny Heller (about 2.8 hours at 1.5× playback speed).

4.2listening hrs
Science Fictionstore shelf
2020released
Free for new listeners

The instrument When will you finish it?

Based on 4.2 hours of listening.

Days to finish Crisis on Citadel II at common listening paces
Your paceYou'll finish in
30 min / day9 days
1 hour / day5 days
2 hours / day3 days
1 hour / day at 1.5×3 days

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

What our data says

  • At 4.2 hours, it is shorter than 80% of the 13,269 Science Fiction audiobooks in our catalog.

About as long, on the Science Fiction shelf

412 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

Crisis on Citadel II is book 3 of Ron Goulart's Flash Gordon series: a 4.2-hour unabridged recording, read by Johnny Heller, released April 14, 2020, on the Science Fiction shelf.

The listen at a glance

Length
4.2 hrs
Narrated by
Johnny Heller
Released
April 14, 2020
Format
Unabridged audiobook
Language
English
Store shelves
Science Fiction
Series
Flash Gordon #3
ISBN
9781645551621

How to listen to Crisis on Citadel II free

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Questions listeners ask

How long is the Crisis on Citadel II audiobook?

Crisis on Citadel II runs 4.2 hours unabridged. At 1.5× speed that drops to roughly 2.8 hours.

Is the Crisis on Citadel II audiobook free?

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

Who narrates Crisis on Citadel II?

Crisis on Citadel II is narrated by Johnny Heller.