The Books Insiderindependent audiobook data
Oath to Defend by Scott Matthews

Oath to Defend: Audiobook

Book 2 of the Adam Drake series

According to The Books Insider's catalog data, the Oath to Defend audiobook runs 8.5 hours unabridged, narrated by Shawn Rigby (about 5.6 hours at 1.5× playback speed).

8.5listening hrs
Legal & Politicalstore shelf
2025released
Free for new listeners

The instrument When will you finish it?

Based on 8.5 hours of listening.

Days to finish Oath to Defend at common listening paces
Your paceYou'll finish in
30 min / day17 days
1 hour / day9 days
2 hours / day5 days
1 hour / day at 1.5×6 days

Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.

What our data says

  • At 8.5 hours, it is shorter than 69% of the 2,576 Legal & Political audiobooks in our catalog.

Catching up on The Adam Drake Series

This is book 2. Book 1 runs 8 hours before it; books 1 to 5 run 39.9 hours in all.

BookTitleLength
1The Assassin's List8 hrs
2Oath to Defend8.5 hrs
3Dark Trojan7.8 hrs
4Call It Treason7.5 hrs
5Special Counsel8.1 hrs

About as long, on the Legal & Political shelf

491 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

Oath to Defend is book 2 of Scott Matthews's Adam Drake series: a 8.5-hour unabridged recording, read by Shawn Rigby, released September 26, 2025, on the Legal & Political shelf.

The listen at a glance

Length
8.5 hrs
Narrated by
Shawn Rigby
Released
September 26, 2025
Format
Unabridged audiobook
Language
English
Store shelves
Legal & Political
Series
The Adam Drake Series #2
ISBN
9781004209873

How to listen to Oath to Defend 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.

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Questions listeners ask

How long is the Oath to Defend audiobook?

Oath to Defend runs 8.5 hours unabridged. At 1.5× speed that drops to roughly 5.6 hours.

Is the Oath to Defend audiobook free?

Yes, for new listeners: the trial starts you with three free audiobooks.

Who narrates Oath to Defend?

Oath to Defend is narrated by Shawn Rigby.