
Book · Thrillers and mysteries
Lock In: A Novel of the Near Future (Lock In Series Book 1)
by John Scalzi
Page count, estimated reading time and reading quiz: everything to know before you start Lock In: A Novel of the Near Future (Lock In Series Book 1), and the Vread challenge to get to the end.
- Pages
- 303
- Reading time
- ≈ 5 h 30 min
- Checkpoints
- 9
- Genre
- Thriller
Free on iPhone and Android.
How long does it take to read Lock In: A Novel of the Near Future (Lock In Series Book 1)?
At 303 pages, Lock In: A Novel of the Near Future (Lock In Series Book 1) is a fairly long book. Expect about 5 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 11 days of reading. At the median pace of Vread readers, 72 pages per reading day, it takes 5 reading days. For a book of this length (250 to 399 pages), Vread readers who finish it take a median of 4.7 days between the first and the last checkpoint (Vread Reading Barometer 2026).
- 30 minutes a day11 days
- Vread median pace (72 pp./day)5 days
Estimates; see the method at the bottom of the page.
Prove you read it
The Vread challenge: 9 checkpoints
- Checkpoint 1, page 34
- Checkpoint 2, page 67
- Checkpoint 3, page 101
- Checkpoint 4, page 135
- Checkpoint 5, page 168
- Checkpoint 6, page 202
- Checkpoint 7, page 236
- Checkpoint 8, page 269
- Checkpoint 9, page 303
In Vread, Lock In: A Novel of the Near Future (Lock In Series Book 1) is split into 9 checkpoints, one every 34 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 9 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 Lock In: A Novel of the Near Future (Lock In Series Book 1): 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 Lock In: A Novel of the Near Future (Lock In Series Book 1)?
How long does it take to read Lock In: A Novel of the Near Future (Lock In Series Book 1)?
Is there a quiz on Lock In: A Novel of the Near Future (Lock In Series Book 1)?
Where can I find a summary of Lock In: A Novel of the Near Future (Lock In Series Book 1)?
More by this author on Vread
Similar books: thrillers and mysteries

Lockwood and Co: the Screaming Staircase: Book 1
Jonathan Stroud
351 pages

London Bridges (Alex Cross Book 10)
James Patterson
278 pages

Long Bright River : A GMA Book Club Pick
Liz Moore
416 pages

Long Lost
Harlan Coben
390 pages

Long Road to Mercy
David Baldacci
399 pages

Looking For Rachel Wallace
Parker Robert B
189 pages
Read Lock In: A Novel of the Near Future (Lock In Series Book 1) 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
