The Books Insiderindependent audiobook data
Encyclopedia Brown and the Case of the Secret UFOs by Donald J. Sobol

Encyclopedia Brown and the Case of the Secret UFOs: Audiobook

Book 25 of the Encyclopedia Brown series

According to The Books Insider's catalog data, the Encyclopedia Brown and the Case of the Secret UFOs audiobook runs 1.2 hours unabridged, narrated by Greg Steinbruner (about 0.8 hours at 1.5× playback speed).

1.2listening hrs
Mystery & Fantasystore shelf
2011released
Free for new listeners

The instrument When will you finish it?

Based on 1.2 hours of listening.

Days to finish Encyclopedia Brown and the Case of the Secret UFOs 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 1.2 hours, it is shorter than 84% of the 7,923 Mystery & Fantasy 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

Encyclopedia Brown and the Case of the Secret UFOs is book 25 of Donald J. Sobol's Encyclopedia Brown series: a 1.2-hour unabridged recording, read by Greg Steinbruner, released June 3, 2011, on the Mystery & Fantasy shelf.

The listen at a glance

Length
1.2 hrs
Narrated by
Greg Steinbruner
Released
June 3, 2011
Format
Unabridged audiobook
Language
English
Store shelves
Mystery & Fantasy
Series
Encyclopedia Brown #25
ISBN
9781461804178

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Questions listeners ask

How long is the Encyclopedia Brown and the Case of the Secret UFOs audiobook?

Encyclopedia Brown and the Case of the Secret UFOs runs 1.2 hours unabridged. At 1.5× speed that drops to roughly 0.8 hours.

Is the Encyclopedia Brown and the Case of the Secret UFOs audiobook free?

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

Who narrates Encyclopedia Brown and the Case of the Secret UFOs?

Encyclopedia Brown and the Case of the Secret UFOs is narrated by Greg Steinbruner.