The Fourth Side of the Triangle: Audiobook
Book 29 of the Ellery Queen Mysteries series
According to The Books Insider's catalog data, The Fourth Side of the Triangle runs 7.8 hours as an unabridged audiobook, narrated by Mark Peckham (about 5.2 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 7.8 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 16 days |
| 1 hour / day | 8 days |
| 2 hours / day | 4 days |
| 1 hour / day at 1.5× | 6 days |
You'll finish in – by –
Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.
What our data says
- At 7.8 hours, it is shorter than 61% of the 22,296 Police & Detective audiobooks in our catalog.
More narrated by Mark Peckham
Mark Peckham narrates 66 unabridged audiobooks in our catalog, 534 hours in all.
- Everest, Revised & Updated Edition: Mountain without Mercy
- Great Classic Westerns
- H. P. Lovecraft’s Book of the Supernatural: 20 Classic Tales of the Macabre, Chosen by the Master of Horror Himself
- Self-Help Messiah: Dale Carnegie and Success in Modern America
- Topsy: The Startling Story of the Crooked-Tailed Elephant, P. T. Barnum, and the American Wizard, Thomas Edison
About as long, on the Police & Detective shelf
4,921 Police & Detective 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
The Fourth Side of the Triangle is book 29 of Ellery Queen's Ellery Queen Mysteries series: a 7.8-hour unabridged recording, read by Mark Peckham, released June 1, 2014, on the Police & Detective shelf.
The listen at a glance
- Length
- 7.8 hrs
- Narrated by
- Mark Peckham
- Released
- June 1, 2014
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Police & Detective
- Series
- The Ellery Queen Mysteries #29
- ISBN
- 9781620649992
How to listen to The Fourth Side of the Triangle 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.
Start listening freeQuestions listeners ask
How long is The Fourth Side of the Triangle as an audiobook?
The Fourth Side of the Triangle runs 7.8 hours unabridged. At 1.5× speed that drops to roughly 5.2 hours.
Is The Fourth Side of the Triangle free as an audiobook?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates The Fourth Side of the Triangle?
The Fourth Side of the Triangle is narrated by Mark Peckham.