Kathleen Ernst books in order
11 books in the catalogue, about 28 hours of reading in all; the shortest takes 53 minutes and the longest 4 hours.
11 standalone books in the catalogue.
Standalone books
Trouble at Fort Lapointe 3.0 h 
Betrayal at Cross Creek 3.0 h 
Danger at the Zoo 3.3 h 
Midnight in Lonesome Hollow 3.5 h 
The Runaway Friend 53 min 
Caroline's Battle 1.6 h 
Caroline's Secret Message 1.7 h 
Changes for Caroline 1.5 h 
Meet Caroline 1.7 h 
Traitor in the Shipyard 3.3 h 
The Smuggler's Secrets 4.0 h