Winter Solstice Crime Fiction

I love the Winter Solstice. So glad the days will begin to lengthen. I'm big on light. I put together a huge list of Christmas Mysteries (divided into 5 posts HERE, HERE, HERE, HERE and HERE), and I'm sure some of those authors/titles reference the Winter Solstice, but I didn't find all that many that actually center on the Winter Solstice. Any titles/authors you can add?

Winter Solstice Mysteries

Ngaio Marsh, Off with His Head
Joan Hess, A Holly Jolly Murder
Jane Langton, The Shortest Day: Murder at the Revels
Henning Mankell, Italian Shoes
Gladys Mitchell. The Dancing Druids

And, if you want to celebrate your Winter Solstice in chocolate, check out these Yule Log (Buche De Noel) posts.

Buche de Noel aka Yule Log
Where to Buy Buches de Noel in the San Francisco Bay Area