M. Saylor Billings

The Rot is Deep: An O Line Mystery

2012

Red, White, and Scotch. An O Line Mystery

2013

Nobody, Really, Likes You. A Guide to insouciance.

2012

The Disaster Relief Club: An O Line Mystery Book 2

2012

Saint Charles Place: An O Line Mystery Book 1

2012

The O Line Mystery Shorts, Book 1 (Dramatized)

2025

The O Line Mystery Shorts, Book 2 (Dramatized)

2026

The O Line Mystery Shorts, Book 4 (Dramatized)

2026

The O Line Mystery Shorts, Book 3 (Dramatized)

2025

The O Line Mystery Shorts, Book 5

2025

The O Line Mystery Shorts, Book 6 (Unabridged)

2025