There are 4 books planned for The Fair Folk of Mullarkey Series, each from the point of view of a different woman living in Mullarkey Mills: Elenna, Joelle, Hadley and Nina. These books are designed to read as stand-alones and can be read in any order. The suggested reading order below is my suggested reading order.

Note that Innkeeper's Welcome is a prequel short story to Hallow Crossing, but I suggest reading Hallow Crossing first. I believe the short prequel will be more enjoyable once you know the characters. However, there are no spoilers in Innkeeper's Welcome, so chronological purists may want to read it first. 

The series so far: 
 

Elenna's Story

Novel

Joelle's Story

Novel

Joelle's Prequel

Short Story