Frost, Jacqueline (Mystery writer). Christmas tree farm mystery #6

"As Christmas descends on Mistletoe, Maine, Holly White has an extra gift for the season: a new baby on the way. Her husband, Sheriff Evan Gray, has been worried about her elevated blood pressure, and Holly has agreed to take this year easy. Being idle has never been one of Holly's gifts, so when Evan surprises her with tickets to the town-wide dinner, she and her many cravings thank him. But when a thief tries and fails to steal an antique ornament from the dinner's holiday display, it's clear that someone is on the naughty list. The thief manages to escape, but after dinner, Holly spots their lifeless body. It's clear that someone in town was keen to kill them"--