The Casterglass Heir: Audiobook
Book 3 of the Keeping Up with the Penryns series
According to The Books Insider's catalog data, The Casterglass Heir runs 7.2 hours as an unabridged audiobook, narrated by Elizabeth Knowelden (about 4.8 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 7.2 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 15 days |
| 1 hour / day | 8 days |
| 2 hours / day | 4 days |
| 1 hour / day at 1.5× | 5 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 7.2 hours, it is shorter than 59% of the 16,241 Modern audiobooks in our catalog.
Catching up on The Keeping Up with the Penryns Series
This is book 3. Books 1 to 2 run 14.9 hours before it; books 1 to 4 run 28.7 hours in all.
| Book | Title | Length |
|---|---|---|
| 1 | A Casterglass Christmas | 7.9 hrs |
| 2 | A Casterglass Garden | 7 hrs |
| 3 | The Casterglass Heir | 7.2 hrs |
| 4 | The Last Casterglass | 6.6 hrs |
More narrated by Elizabeth Knowelden
Elizabeth Knowelden narrates 212 unabridged audiobooks in our catalog, 2,094 hours in all.
About as long, on the Modern shelf
2,721 Modern 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
The Casterglass Heir is book 3 of Kate Hewitt's Keeping Up with the Penryns series: a 7.2-hour unabridged recording, read by Elizabeth Knowelden, released May 16, 2023, on the Modern shelf.
The listen at a glance
- Length
- 7.2 hrs
- Narrated by
- Elizabeth Knowelden
- Released
- May 16, 2023
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Modern
- Series
- The Keeping Up with the Penryns Series #3
- ISBN
- 9798212307017
How to listen to The Casterglass Heir 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 Casterglass Heir as an audiobook?
The Casterglass Heir runs 7.2 hours unabridged. At 1.5× speed that drops to roughly 4.8 hours.
Is The Casterglass Heir free as an audiobook?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates The Casterglass Heir?
The Casterglass Heir is narrated by Elizabeth Knowelden.