Book · Non-fiction, memoir and self-help
The devil and Sherlock Holmes : tales of murder, madness, and obsession
by David Grann
Page count, estimated reading time and reading quiz: everything to know before you start The devil and Sherlock Holmes : tales of murder, madness, and obsession, and the Vread challenge to get to the end.
- Pages
- 469
- Reading time
- ≈ 8 h 30 min
- Checkpoints
- 13
- Genre
- Non-fiction
Free on iPhone and Android.
How long does it take to read The devil and Sherlock Holmes : tales of murder, madness, and obsession?
At 469 pages, The devil and Sherlock Holmes : tales of murder, madness, and obsession is a fairly long book. Expect about 8 hours 30 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 17 days of reading. At the median pace of Vread readers, 72 pages per reading day, it takes 7 reading days. For a book of this length (400 to 599 pages), Vread readers who finish it take a median of 5.3 days between the first and the last checkpoint (Vread Reading Barometer 2026).
- 30 minutes a day17 days
- Vread median pace (72 pp./day)7 days
Estimates; see the method at the bottom of the page.
Prove you read it
The Vread challenge: 13 checkpoints
- Checkpoint 1, page 36
- Checkpoint 2, page 72
- Checkpoint 3, page 108
- Checkpoint 4, page 144
- Checkpoint 5, page 180
- Checkpoint 6, page 216
- Checkpoint 7, page 253
- Checkpoint 8, page 289
- Checkpoint 9, page 325
- Checkpoint 10, page 361
- Checkpoint 11, page 397
- Checkpoint 12, page 433
- Checkpoint 13, page 469
In Vread, The devil and Sherlock Holmes : tales of murder, madness, and obsession is split into 13 checkpoints, one every 36 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 13 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.
Also available in French on Vread.
Illustrative example
What a checkpoint looks like
A short, precise question about the pages you have just read: a character, a place, a choice.
The answer is in the text: reply in the app.
This is not a question from The devil and Sherlock Holmes : tales of murder, madness, and obsession: to avoid spoilers, the real questions stay in the app.
Answer in the app, one checkpoint at a time.
Summary, quiz, reviews: frequently asked questions
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Read The devil and Sherlock Holmes : tales of murder, madness, and obsession 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.
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