The Royal Albert Zoo, an enclave located fictitiously in Kensington Gardens, provides the backdrop for most of the action in this dazzling tale from the prime of John Dickson Carr’s tale-spinning life. (The Carter Dickson pseudonym, of course, in no way obscures the unmistakable stamp of Carr’s authorship.) But in a broader sense, the backdrop is the wild kingdom that extends across the war-wracked skies over London. Set during a three-day period in early September 1940, the events in this novel of domestic murder unfold as German bombers begin their decidedly international assault on Britain’s capital. In several scenes, the haunting drone of aircraft sounds overhead. In one scene, smoke from fires in the East End wafts over the West End, offering a preview of the horrors that will come as the blitz advances over the whole city. And in a pivotal early scene, an air-raid warden on his rounds peeks through a window that should be blacked out, but isn’t, and spots a prone body on the floor.
The body belongs to Edward Benton, director of the zoo. By all accounts, he was a harmless-enough fellow, driven primarily by an obsession with maintaining his large and exotic menagerie amid the challenges and privations of wartime. He was also a man of independent wealth, and a brother of his who might inherit that fortune hovers about the Royal Albert grounds. Otherwise, it’s hard to discern who had a motive to extinguish the zookeeper’s life. But attention here focuses less on motive than on means. Somehow, and for some obscure reason, the killer lined the edges of every point of egress in the murder chamber—from the sills of windows to the bottom of the room’s only door—with adhesive-backed paper. Benton, in other words, drew his last breath in a thoroughly (and not just metaphorically) sealed room. It’s a perfect case for Sir Henry Merrivale, who, by the serendipitous logic of Carr’s world, happens to be at the Benton residence on the evening of the crime.
As noted, the circle of suspects is almost alarmingly small: The reader must ask not just “Who committed the murder?” but “Who even might have committed it?” Despite that handicap, Carr manages to work a kind of surprise in the whodunit department. For Sir Henry, though, pinpointing a killer and proving the killer’s guilt are discrete endeavors, and in this instance court-worthy proof eludes him. So Old H.M.—a man who is largely innocent of patience—confronts the killer in the zoo’s Reptile House and forces the issue in a starkly cold-blooded way.