**Intact Gift Giving Condition book**

Secrets, murder, and mayhem collide as this unlikely sleuthing duo—an under-butler and a foul-mouthed octogenarian—hunt a killer in a manor sealed against the end of the world, in this locked-room mystery by #1 New York Times bestselling author Ross Montgomery. Knives Out meets Downton Abbey! Cornwall, 1910. On a remote tidal island, the Viscount of Tithe Hall is absorbed in feverish preparations for the apocalypse that he believes will accompany the passing of Halley's Comet.