The Books Insiderindependent audiobook data
Spark and the Grand Sleuth by Robert Repino

Spark and the Grand Sleuth: Audiobook

Book 2 of the League of Ursus series

According to The Books Insider's catalog data, the Spark and the Grand Sleuth audiobook runs 7.5 hours unabridged, narrated by Samara Naeymi (about 5 hours at 1.5× playback speed).

7.5listening hrs
Non-fiction (Kids)store shelf
2021released
Free for new listeners

The instrument When will you finish it?

Based on 7.5 hours of listening.

Days to finish Spark and the Grand Sleuth at common listening paces
Your paceYou'll finish in
30 min / day15 days
1 hour / day8 days
2 hours / day4 days
1 hour / day at 1.5×5 days

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

What our data says

  • At 7.5 hours, it runs longer than 91% of the 14,091 Non-fiction (Kids) audiobooks in our catalog.

About as long, on the Non-fiction (Kids) shelf

983 Non-fiction (Kids) 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

Spark and the Grand Sleuth is book 2 of Robert Repino's League of Ursus series: a 7.5-hour unabridged recording, read by Samara Naeymi, released March 23, 2021, on the Mystery & Fantasy and Non-fiction (Kids) shelves.

The listen at a glance

Length
7.5 hrs
Narrated by
Samara Naeymi
Released
March 23, 2021
Format
Unabridged audiobook
Language
English
Store shelves
Mystery & Fantasy, Non-fiction (Kids)
Series
League of Ursus #2
ISBN
9781705033890

How to listen to Spark and the Grand Sleuth free

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Questions listeners ask

How long is the Spark and the Grand Sleuth audiobook?

Spark and the Grand Sleuth runs 7.5 hours unabridged. At 1.5× speed that drops to roughly 5 hours.

Is the Spark and the Grand Sleuth audiobook free?

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

Who narrates Spark and the Grand Sleuth?

Spark and the Grand Sleuth is narrated by Samara Naeymi.