Diana G. Gallagher books in order
12 books in the catalogue, about 36 hours of reading in all; the shortest takes 2 hours and the longest 5 hours.
12 standalone books in the catalogue.
Standalone books
The Tale of the Curious Cat 2.2 h 
Halloween Havoc 3.3 h 
Showdown at the Mall 2.7 h 
Star Trek Voyager - Starfleet Academy - The Chance Factor 2.2 h 
The Tale of the Pulsating Gate 2.5 h 
Bridal Bedlam 3.0 h 
Dog Day Afternoon 1.8 h 
Eight Spells a Week 4.8 h 
Beware What You Wish 3.3 h 
From the Horse's Mouth 2.9 h 
Spirit of the Wolf 3.8 h 
Trickery Treat 3.7 h