Act of Darkness: A Gregor Demarkian Holiday Mysteries Novel: Audiobook
Book 3 of the Gregor Demarkian series
According to The Books Insider's catalog data, the Act of Darkness: A Gregor Demarkian Holiday Mysteries Novel audiobook runs 9.6 hours unabridged, narrated by David Colacci (about 6.4 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 9.6 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 9.6 hours, it is shorter than 54% of the 2,576 Legal & Political audiobooks in our catalog.
More narrated by David Colacci
David Colacci narrates 378 unabridged audiobooks in our catalog, 4,605 hours in all.
About as long, on the Legal & Political shelf
656 Legal & Political 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
Act of Darkness: A Gregor Demarkian Holiday Mysteries Novel is book 3 of Jane Haddam's Gregor Demarkian series: a 9.6-hour unabridged recording, read by David Colacci, released June 14, 2016, on the Legal & Political and Fiction shelves.
The listen at a glance
- Length
- 9.6 hrs
- Narrated by
- David Colacci
- Released
- June 14, 2016
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Legal & Political, Fiction
- Series
- Gregor Demarkian #3
- ISBN
- 9781666584271
How to listen to Act of Darkness: A Gregor Demarkian Holiday Mysteries Novel 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 Act of Darkness: A Gregor Demarkian Holiday Mysteries Novel audiobook?
Act of Darkness: A Gregor Demarkian Holiday Mysteries Novel runs 9.6 hours unabridged. At 1.5× speed that drops to roughly 6.4 hours.
Is the Act of Darkness: A Gregor Demarkian Holiday Mysteries Novel audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Act of Darkness: A Gregor Demarkian Holiday Mysteries Novel?
Act of Darkness: A Gregor Demarkian Holiday Mysteries Novel is narrated by David Colacci.