Widow's Tears is the 21st in the China Bayles series by Susan Wittig Albert. It's $2.99 in the US right now.
Kindle US:
https://www.amazon.com/dp/B009KUX2G0
Kobo US:
https://www.kobo.com/us/en/ebook/widow-s-tears
Spoiler:
After losing her family and home in the Galveston Hurricane of 1900, Rachel Blackwood rebuilt her house a hundred miles inland and later died there, still wrapped in her grief.
In present-day Texas, Claire, the grandniece of Rachel’s caretaker, has inherited the house and wants to turn it into a bed-and-breakfast. But she is concerned that it’s haunted, so she calls in her friend Ruby—who has the gift of extrasensory perception—to check it out.
While Ruby is ghost hunting, China Bayles walks into a storm of trouble in nearby Pecan Springs. A half hour before she is to make her nightly deposit, the Pecan Springs bank is robbed and a teller is shot and killed.
Before she can discover the identity of the killers, China follows Ruby to the Blackwood house to discuss urgent business. As she is drawn into the mystery of the haunted house, China opens the door on some very real danger…