Herald of Death (Pennyfoot Hotel Mystery Series #19) in Bloomington, MN

A dark spirit threatens the Pennyfoot Hotel’s shiny and bright Christmas in this mystery in Kate Kingsbury’s cozy historical series.
The Christmas Angel is a welcome sight during the winter season—but not this year. A killer is afoot in Badgers End, cutting a lock of hair from the victims and sticking a gold angel on their foreheads. Cecily Sinclair Baxter already promised her husband that she’d take a hiatus from sleuthing. But three killings have created a blizzard of bad publicity—and guests are canceling their hotel reservations.
Cecily pokes around, but the victims seem unrelated. Then the killer claims a fourth and fifth victim, obviously not slowing down for the holidays—so neither will Cecily. She will have to stop the angel of death from striking again, leaving murder under the tree...