Mrs. Jeffries and the silent knight

Sir George Braxton was found lying face down in a frozen fountain with the back of his skull bashed to bits. The case is complicated by a distinct lack of holiday cheer in the victim's three argumentative middle-aged daughters and their sullen houseguests. Even the cranky cat hates everyone. To top it all off, the Home Secretary has called in inspector Witherspoon over the heads of some touchy local lads, making matters stickier than a plum pudding.