4 books in series

The Keepers Trilogy

The Keepers Trilogy is a 4-book series with 4 primary works first released in 2010 with contributions by Lian Tanner, Heather Graham, Deborah Leblanc, Kathleen Pickering, and Beth Ciotta.

Museum of Thieves
City of Lies
Path of Beasts
The Keepers: Christmas in Salem: Do You Fear What I Fear? / The Fright Before Christmas / Unholy Night / Stalking in a Winter Wonderland