Killer in the Carriage House by Sheila Connolly

In the first book of the series, Kate Hamilton returned to Asheboro, Maryland at her friend's request. Asheboro is a dying town and Kate's friend thought she might be able to help. She got a boost when she and a visiting historian found letters from Clara Barton.
Now, she's trying to convince the town to go along with her plan to set it up similar to Williamsburg but more early 1900s. That's when the town was built and a lot of the stores on Main Street still have their fixtures underneath all of the updates.
Along with that, she and the history professor are working with an archivist to move all of the papers from the local manor into the town's library. The library that has been closed since the librarian was found to have been... well, not keeping it up correctly in the last book. A young man interrupts her work one day looking for his relatives. The next morning, he's discovered dead after having broken into the library. Suddenly, Kate is in the middle of another mystery.
Unfortunately, the mystery is a little thin. There is more about the set up for the town and papers than anything else which is good because that's more interesting than the killing. We don't get to know the victim at all, the reason for the killing isn't shown until the last quarter of the book, and the killer are barely involved in the story.

Three stars
This book came out July 9th
Follows Murder at the Mansion

Followed by The Secret Staircase 
ARC kindly provided by St. Martin's Press and NetGalley
Opinions are my own