The Missing Formula: Free Audiobook and Listening Guide
The Missing Formula by Mildred A. Wirt Benson: the LibriVox audiobook summary, 15 original MP3 tracks, 2:43:24 running time and a link to listen.

The Missing Formula, credited to Mildred A. Wirt Benson, is available as a LibriVox volunteer audiobook. This guide identifies the recording, its source summary and its audio tracks.
About the work
The LibriVox catalogue summary, preserved with the recording, reads:
LibriVox recording of The Missing Formula by Mildred A. Wirt Benson. Read in English by Mary Escano Orphan Anne Fairaday faces a life of poverty upon the death of her father. The only thing that can prevent it is finding his latest experiment. She enlisted her new found friend, Madge Sterling, an outdoors girl who has a knack for finding missing things. But they must race against time as there are also several people who will stop at nothing to get it first. (Summary by Mary Escano)
Recording facts
- Recording title: The Missing Formula
- Author credits: Mildred A. Wirt Benson
- Language: English
- Original MP3 tracks: 15
- Listed recording duration: 2:43:24
Catalogue topics
- adventure
- young adult
- Mystery
- treasure
- sleuth
- girl detective
- Stratemeyer Syndicate
Track guide
- 01 - Caught in the Storm — 13:16
- 02 - A Rescue — 13:37
- 03 - A Puzzling Letter — 11:55
- 04 - A Fruitless Search — 12:23
- 05 - Clyde Wendell's Mission — 11:28
- 06 - Startling Developments — 16:40
- 07 - In a Hollow Log — 15:15
- 08 - A Night Caller — 11:36
- 09 - A Significant Title — 7:23
- 10 - An Unsatisfactory Test — 7:57
- 11 - The Secret Hiding Place — 9:00
- 12 - The Awaited Message — 7:16
- 13 - The Missing Book — 12:09
- 14 - The Shortcut — 5:27
- 15 - What the Book Revealed — 8:02
Listen to this recording
Open the complete recording and player on Internet Archive. The player includes the full track list and available download formats.
Source and rights
This is a record from LibriVox's official Internet Archive collection, with a public-domain licence recorded in its metadata. LibriVox's policy includes its catalogue summaries as well as its recordings. Its public-domain assessment follows United States law; copyright status can differ elsewhere. The summary and track facts are reproduced and reformatted from that record. Dates attached to the archive upload are not treated as original book publication dates.


