Book · Thrillers and mysteries
The Missing Sister
by Lucinda Riley
Page count, estimated reading time and reading quiz: everything to know before you start The Missing Sister, and the Vread challenge to get to the end.
- Pages
- 826
- Reading time
- ≈ 15 h
- Checkpoints
- 23
- Genre
- Thriller
Free on iPhone and Android.
How long does it take to read The Missing Sister?
At 826 pages, The Missing Sister is a doorstopper. Expect about 15 hours 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 30 days of reading. At the median pace of Vread readers, 72 pages per reading day, it takes 12 reading days. For a book of this length (600 pages or more), Vread readers who finish it take a median of 6.4 days between the first and the last checkpoint (Vread Reading Barometer 2026).
- 30 minutes a day30 days
- Vread median pace (72 pp./day)12 days
Estimates; see the method at the bottom of the page.
Prove you read it
The Vread challenge: 23 checkpoints
- Checkpoint 1, page 36
- Checkpoint 2, page 72
- Checkpoint 3, page 108
- Checkpoint 4, page 144
- Checkpoint 5, page 180
- Checkpoint 6, page 215
- Checkpoint 7, page 251
- Checkpoint 8, page 287
- Checkpoint 9, page 323
- Checkpoint 10, page 359
- Checkpoint 11, page 395
- Checkpoint 12, page 431
- Checkpoint 13, page 467
- Checkpoint 14, page 503
- Checkpoint 15, page 539
- Checkpoint 16, page 575
- Checkpoint 17, page 611
- Checkpoint 18, page 646
- Checkpoint 19, page 682
- Checkpoint 20, page 718
- Checkpoint 21, page 754
- Checkpoint 22, page 790
- Checkpoint 23, page 826
In Vread, The Missing Sister is split into 23 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 23 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 Missing Sister: 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
How many pages is The Missing Sister?
How long does it take to read The Missing Sister?
Is there a quiz on The Missing Sister?
Where can I find a summary of The Missing Sister?
More by this author on Vread
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Read The Missing Sister 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.
Take the challenge