The Books Insiderindependent audiobook data
The Sign of the Four by Sir Arthur Conan Doyle

The Sign of the Four: Audiobook

by Sir Arthur Conan Doyle · narrated by Robin Cotter · unabridged · 2016

According to The Books Insider's catalog data, The Sign of the Four runs 4.3 hours as an unabridged audiobook, narrated by Robin Cotter (about 2.9 hours at 1.5× playback speed).

4.3listening hrs
Suspensestore shelf
2016released
Free for new listeners
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The instrument When will you finish it?

Based on 4.3 hours of listening.

Days to finish The Sign of the Four 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
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Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.

What our data says

  • At 4.3 hours, it is shorter than 87% of the 13,042 Suspense audiobooks in our catalog.

More narrated by Robin Cotter

Robin Cotter narrates 6 unabridged audiobooks in our catalog, 29 hours in all.

About as long, on the Suspense shelf

318 Suspense audiobooks in our catalog run within 10% of this length. The most popular on the store:

Other recordings

  • The 2026 recording read by TBA runs 0.7 hours shorter (3.6 hours).
  • The 2025 recording read by Miles Turner and Victoria Green runs about the same length (4.3 hours).
  • The 2024 recording read by David Clarke runs 0.2 hours longer (4.5 hours).
  • The 2024 recording read by Matthew Lloyd Davies runs 0.1 hours shorter (4.2 hours).
  • The 2024 recording read by Peter Coates runs 0.6 hours shorter (3.7 hours).

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 Sign of the Four is an audiobook by Sir Arthur Conan Doyle: a 4.3-hour unabridged recording, read by Robin Cotter, released January 1, 2016, on the Suspense shelf.

The listen at a glance

Length
4.3 hrs
Narrated by
Robin Cotter
Released
January 1, 2016
Format
Unabridged audiobook
Language
English
Store shelves
Suspense

How to listen to The Sign of the Four 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.

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Questions listeners ask

How long is The Sign of the Four as an audiobook?

The Sign of the Four runs 4.3 hours unabridged. At 1.5× speed that drops to roughly 2.9 hours.

Is The Sign of the Four free as an audiobook?

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

Who narrates The Sign of the Four?

The Sign of the Four is narrated by Robin Cotter.