The Books Insiderindependent audiobook data
The Case of the Missing Firefly by Chris McDonald

The Case of the Missing Firefly: Audiobook

Book 4 of the Stonebridge Mystery series

According to The Books Insider's catalog data, The Case of the Missing Firefly runs 3 hours as an unabridged audiobook, narrated by Stephen Armstrong (about 2 hours at 1.5× playback speed).

3listening hrs
Police & Detectivestore shelf
2022released
Free for new listeners

The instrument When will you finish it?

Based on 3 hours of listening.

Days to finish The Case of the Missing Firefly at common listening paces
Your paceYou'll finish in
30 min / day6 days
1 hour / day3 days
2 hours / day2 days
1 hour / day at 1.5×2 days

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

What our data says

  • At 3 hours, it is shorter than 93% of the 22,296 Police & Detective audiobooks in our catalog.

Catching up on Stonebridge Mystery

This is book 4. Books 1 to 3 run 8.7 hours before it; books 1 to 6 run 17.7 hours in all.

About as long, on the Police & Detective shelf

231 Police & Detective 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 Case of the Missing Firefly is book 4 of Chris McDonald's Stonebridge Mystery series: a 3-hour unabridged recording, read by Stephen Armstrong, released August 1, 2022, on the Police & Detective shelf.

The listen at a glance

Length
3 hrs
Narrated by
Stephen Armstrong
Released
August 1, 2022
Format
Unabridged audiobook
Language
English
Store shelves
Police & Detective
Series
Stonebridge Mystery #4
ISBN
9781399123433

How to listen to The Case of the Missing Firefly 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 free

Questions listeners ask

How long is The Case of the Missing Firefly as an audiobook?

The Case of the Missing Firefly runs 3 hours unabridged. At 1.5× speed that drops to roughly 2 hours.

Is The Case of the Missing Firefly free as an audiobook?

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

Who narrates The Case of the Missing Firefly?

The Case of the Missing Firefly is narrated by Stephen Armstrong.