The Books Insiderindependent audiobook data
Horrible Harry and the Secret Treasure by Suzy Kline

Horrible Harry and the Secret Treasure: Audiobook

Book 26 of the Horrible Harry series

According to The Books Insider's catalog data, the Horrible Harry and the Secret Treasure audiobook runs 0.8 hours unabridged, narrated by Johnny Heller (about 0.5 hours at 1.5× playback speed).

0.8listening hrs
Mystery & Fantasystore shelf
2011released
Free for new listeners

The instrument When will you finish it?

Based on 0.8 hours of listening.

Days to finish Horrible Harry and the Secret Treasure at common listening paces
Your paceYou'll finish in
30 min / day2 days
1 hour / day1 day
2 hours / day1 day
1 hour / day at 1.5×1 day

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

What our data says

  • At 0.8 hours, it is shorter than 89% of the 7,923 Mystery & Fantasy audiobooks in our catalog.

About as long, on the Mystery & Fantasy shelf

210 Mystery & Fantasy 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

Horrible Harry and the Secret Treasure is book 26 of Suzy Kline's Horrible Harry series: a 0.8-hour unabridged recording, read by Johnny Heller, released July 1, 2011, on the Mystery & Fantasy shelf.

The listen at a glance

Length
0.8 hrs
Narrated by
Johnny Heller
Released
July 1, 2011
Format
Unabridged audiobook
Language
English
Store shelves
Mystery & Fantasy
Series
Horrible Harry #26
ISBN
9781461804260

How to listen to Horrible Harry and the Secret Treasure free

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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 Horrible Harry and the Secret Treasure audiobook?

Horrible Harry and the Secret Treasure runs 0.8 hours unabridged. At 1.5× speed that drops to roughly 0.5 hours.

Is the Horrible Harry and the Secret Treasure audiobook free?

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

Who narrates Horrible Harry and the Secret Treasure?

Horrible Harry and the Secret Treasure is narrated by Johnny Heller.