Gray Day: My Undercover Mission to Expose America's First Cyber Spy: Audiobook
According to The Books Insider's catalog data, the Gray Day: My Undercover Mission to Expose America's First Cyber Spy audiobook runs 9.7 hours unabridged, narrated by Eric O'Neill (about 6.5 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 9.7 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 20 days |
| 1 hour / day | 10 days |
| 2 hours / day | 5 days |
| 1 hour / day at 1.5× | 7 days |
You'll finish in – by –
Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.
What our data says
- At 9.7 hours, it runs longer than 75% of the 10,266 Memoirs audiobooks in our catalog.
About as long, on the Memoirs shelf
2,063 Memoirs audiobooks in our catalog run within 10% of this length. The most popular on the store:
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
Gray Day: My Undercover Mission to Expose America's First Cyber Spy is an audiobook by Eric O'Neill: a 9.7-hour unabridged recording, read by Eric O'Neill, released March 26, 2019, on the Memoirs and True Crime shelves.
The listen at a glance
- Length
- 9.7 hrs
- Narrated by
- Eric O'Neill
- Released
- March 26, 2019
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Memoirs, True Crime
- ISBN
- 9781984844996
How to listen to Gray Day: My Undercover Mission to Expose America's First Cyber Spy 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.
Start listening freeQuestions listeners ask
How long is the Gray Day: My Undercover Mission to Expose America's First Cyber Spy audiobook?
Gray Day: My Undercover Mission to Expose America's First Cyber Spy runs 9.7 hours unabridged. At 1.5× speed that drops to roughly 6.5 hours.
Is the Gray Day: My Undercover Mission to Expose America's First Cyber Spy audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Gray Day: My Undercover Mission to Expose America's First Cyber Spy?
Gray Day: My Undercover Mission to Expose America's First Cyber Spy is narrated by Eric O'Neill.