While Agatha Troy Alleyn is on a river cruise and enjoys true Constable landscapes, her husband Superintendent Alleyn has to investigate a murder most foul amidst the same clutch of Constables...

It was April in Rome, and gathered together in the church of San Tommaso in Pallario was the kind of varied group of people that can only meet on a tour. They were there under the aegis of one Sebastian Mailer, who had promised them a most unconventional tour — a claim no one later disputed, after encountering murder, blackmail and drug-running. Inspector Roderick Alleyn, in Rome on a special mission, became involved in the case, and found it one of his most baffling — a case in which every suspect might equally well prove a victim…

Christmas time in an isolated country house and, following a flaming row in the kitchen, there's murder inside. When a much disliked visiting servant disappears without trace after playing Santa Claus, foul play is at once suspected — and foul play it proves to be. Only suspicion falls not on the staff but on the guests, all so unimpeachably respectable that the very thought of murder in connection with any of them seems almost heresy. When Superintendent Roderick Alleyn returns unexpectedly from a trip to Australia, it is to find his beloved wife in the thick of an intriguing mystery…

Tension mounts as Inspector Alleyn works against time to collar a vicious killer and avert a political holocaust, the repercussions of which would be felt around the world!

As particular about her horses as she was casual about her lovers, young Dulcie Harkness courted trouble — and found it in a lonely and dangerous jump. What will her death reveal? Young Roderick Alleyn (Ricky) is the object of special interest.

A bit snobbish and a trifle high-strung, Sybil Foster prides herself on owning the finest estate in Upper Quintern and hiring the best gardener. In fact, she is rapturous over the new asparagus beds when a visit from her unwelcome stepson sends her scurrying to a chic spa for a rest cure, a liaison with the spa's director… and an apparent suicide. Her autopsy holds one surprise, a secret drawer a second. And Inspector Roderick Alleyn, C.I.D., digging about Upper Quintern, may unearth still a third… deeply buried motive for murder.

The Sommita lay spread-eagled on her back across a red counterpane. The bosom of her red biblical dress had been torn down to the waist and under her left breast, irrelevantly, unbelievably, the haft of a knife stuck out. The right arm, rigid as a branch, was raised in the fascist salute. She might have been posed for the jacket on an all-too-predictable shocker…

Peregrine Jay, owner of the Dolphin Theatre, is putting on a magnificent production of Macbeth, the play that, superstition says, always brings bad luck. But one night the claymore swings and the dummy's head is more than real: murder behind the scene. Luckily, Chief Superintendent Roderick Alleyn is in the audience…