The Books Insiderindependent audiobook data
Cover of Onyx Storm by Rebecca Yarros

Onyx Storm: Audiobook

Book 3 of the Empyrean series · see all 3 in reading order

According to The Books Insider's catalog data, the Onyx Storm audiobook runs 23.9 hours (about 15.9 hours at 1.5× playback speed).

23.9listening hrs
4.5★31 ratings
Romancegenre
Free for new listeners

The instrumentWhen will you finish it?

Based on 23.9 hours of listening.

Days to finish Onyx Storm at common listening paces
Your paceYou'll finish in
30 min / day48 days
1 hour / day24 days
2 hours / day12 days
1 hour / day at 1.5×16 days

Part of The Audiobook Finish-Time Calculator: the same instrument for any of the 2,187 audiobooks we measure.

What our data says

  • At 23.9 hours, it runs longer than 99% of the romance audiobooks we measured.
  • That's 185% longer than the average romance audiobook (8.4 hrs across 3598 titles in our dataset).

Computed from romance audiobooks in The Books Insider dataset (build ). Methodology.

Who is this for?

Best for romance listeners who want epic quests and a central love story: a long-haul epic at 23.9 hours.

About the book

After nearly eighteen months at Basgiath War College, Violet Sorrengail knows there’s no more time for lessons. No more time for uncertainty. Because the battle has truly begun, and with enemies closing in from outside their walls and within their ranks, it’s impossible to know who to trust. Now Violet must journey beyond the failing Aretian wards to seek allies from unfamiliar lands to stand with Navarre. The trip will test every bit of her wit, luck, and strength, but she will do anything to save what she loves—her dragons, her family, her home, and him . Even if it means keeping a secret so big, it could destroy everything. They need an army. They need power. They need magic . And they need the one thing only Violet can find—the truth. But a storm is coming … and not everyone can survive its wrath.

How to listen to Onyx Storm 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 Onyx Storm audiobook?

Onyx Storm runs 23.9 hours. At 1.5× speed that drops to roughly 15.9 hours.

Is the Onyx Storm audiobook free?

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

Is Onyx Storm worth listening to at 1.5× speed?

At 1.5× you'd finish in about 15.9 hours, saving 8 hours. Most listeners adjust to 1.25–1.5× within a chapter or two.

When was Onyx Storm first published?

Onyx Storm by Rebecca Yarros was first published in 2025.