Skip to content
Cover of The Sign of Four

The Sign of FourArthur Conan Doyle

Page count, estimated reading time and reading quiz: everything to know before you start The Sign of Four, and the Vread challenge to get to the end.

Take the challenge in Vread

At a glance

Author
Arthur Conan Doyle
Page count
158 pages
Estimated reading time
about 2 hours 50 minutes
Vread checkpoints
5 (one every 32 pages or so)
Genre
Classics
Edition language
English

How long does it take to read The Sign of Four?

At 158 pages, The Sign of Four is a medium-length book. Expect about 2 hours 50 minutes of reading to finish it, based on 250 words per page and an average reading speed of 230 words per minute. A fast reader will go quicker; a careful read (or reading in a second language) will take longer.

At 30 minutes a day, that is about 6 days of reading. At the median pace of Vread readers, 72 pages per reading day, it takes 3 reading days. For a book of this length (under 250 pages), Vread readers who finish it take a median of 4 days between the first and the last checkpoint (Vread Reading Barometer 2026).

The Vread challenge: 5 checkpoints

In Vread, The Sign of Four is split into 5 checkpoints, one every 32 pages or so. At each checkpoint, a question covers the passage you have just read: a correct answer validates the step, and your progress moves forward like a training plan.

The challenge: validate all 5 checkpoints through to the last page. No giant quiz at the end, no summary to copy out: short questions along the way that prove the book was actually read. It also works as a reading quiz to check your understanding before a test.

Example: the checkpoint 1 question
What weapon does Sherlock Holmes take from his drawer and slip into his pocket before the night expedition with Miss Morstan?

Public-domain work. The answer, and the following questions, unlock in the app.

On the syllabus? See also the GCSE English Literature: The Sign of Four page.

Also available in French on Vread.

Summary, quiz, reviews: frequently asked questions

How many pages is The Sign of Four?

The edition listed on Vread has 158 pages. The exact count varies by edition (paperback, hardback, ebook).

How long does it take to read The Sign of Four?

About 2 hours 50 minutes of reading, or 6 days at 30 minutes a day.

Is there a quiz on The Sign of Four?

Yes: the Vread app has 5 reading questions on The Sign of Four, one per checkpoint, unlocked as you read.

Where can I find a summary of The Sign of Four?

Vread does not publish summaries: the app supports reading the book itself, part by part. Checkpoint questions cover what you have just read, which makes them a good way to check you did not miss anything.

What do Vread readers think of The Sign of Four?

Not enough ratings yet to publish an average: Vread only shows an aggregate rating from 10 ratings.

Read The Sign of Four with Vread

Add the book to your library, read at your own pace in whatever format you use, and validate each checkpoint. Vread is free on iPhone and Android.

Download VreadAlready have the app? Open the book

More by this author on Vread

Similar books: classics

All books: classics · All genres

Written by Vread from its catalogue data (page count of the listed edition, checkpoints, ratings aggregated from 10 ratings). No summary or publisher text is reproduced. Reading times are estimates; see the method in the Vread Reading Barometer (in French).