Sleigh bells, snowstorms, and slightly illegal sleuthing.

For the past thirty years, an undeliverable Christmas card has arrived at the Willowcroft Post Office—no return address, no known recipient. When it turns up yet again, writer-turned-amateur sleuth Tammy Rumbelow can't resist tracing the trail of this mysterious mail.

With her curious cat Lockie by her side, Tammy teams up with her festive crew of sleuths:

Olivia the bookstore owner and genealogist,

Mrs. Temperance the knitting-circle queen,

retired sheriff Wally, and

tech-whiz teen Xander.

When their holiday adventure spirals from festive to felonious with a break-in at the Dead Letter Office, the stakes rise higher.

The team uncovers clues that could unravel Willowcroft's most cherished tradition—and expose heartbreak hidden beneath decades of holiday sparkle.

Between shattered nutcrackers and ghosts of Christmas past, this season promises both peril and romance.

Perfect for fans of snowy settings, small-town secrets, and sleuthing with a side of tea, tinsel, and a touch of romance.