Wings Over the Diamantina
A Detective Unlike Any Other
Long before diversity became a talking point in fiction, Arthur Upfield had already built his most enduring character around it. Detective Inspector Napoleon Bonaparte — "Bony" to anyone who knew him — was a half-Aboriginal, half-white Queensland police detective, and promotional materials of the era went so far as to call him "the first Aboriginal detective." That description carries real weight. The radio drama Wings Over the Diamantina puts this unusual investigator at the centre of a genuinely strange case: a stolen red monoplane found abandoned on the dry bed of Emu Lake in remote western Queensland, a young woman strapped in the passenger seat and paralysed by an unknown drug, and a pilot who has vanished without a trace. It's the kind of opening that earns its serial format.
The series adapts Upfield's 1936 novel Wings Above the Diamantina, the third book in his long-running Inspector Bonaparte series, originally published in Australia by Angus & Robertson. Before it appeared as a book, the novel ran as a serial in The Australian Journal between January and September 1936. The radio adaptation arrived a few years later, with the production that generated the surviving recorded episodes airing on Australian stations in 1941, including Sydney's 2UE.
The World Upfield Built
Arthur William Upfield was born in England on 1 September 1890 and arrived in Australia in 1910. He served with the Australian military in World War I, and after the war he travelled widely across the continent — experiences that fed directly into his fiction. The outback settings in his Bonaparte novels aren't approximate or decorative. Upfield knew these landscapes firsthand, and the isolation and strangeness of the Australian interior are essential to how his mysteries work.
The Diamantina River, which gives this story its title, flows through western Queensland into northern South Australia — flat, arid cattle-station country far from any major town. Setting a mystery there isn't just atmospheric choice. In a landscape where an abandoned aircraft on a dry lake bed might go unnoticed for weeks, where the nearest authority is a long ride away, the remoteness becomes a plot element in itself. Bony's ability to read country — to track, to observe, to understand the land in ways European-trained investigators couldn't — is what makes him effective in cases like this one. His mixed heritage, which puts him at odds with the social structures of the era, also gives him a kind of outsider clarity that Upfield returned to across 29 novels.
The 1941 Production
The recorded episodes that make up the catalog come from the 1941 Australian radio serialisation. The production aired on 2UE in Sydney among other stations, and the series ran to at least 26 chapters. The catalog here covers chapters 14 through 26 — meaning the later portion of the serial is what survives in this collection, picking up as the central mystery is presumably well underway.
There is a separate, unverified report that an earlier adaptation aired in 1939 on station 4LG, produced by Broadcast Approval Productions with an all-Australian cast and featuring Gwen Munro in a leading role. That claim comes from a non-scholarly source and couldn't be confirmed, so it's worth holding lightly. What can be said more firmly is that the 1941 production is the one with a documented broadcast record, and it's the source of the audio that survives.
The episode numbering — Chapter 14, Chapter 16, Chapter 17, and so on through Chapter 26 — reflects the serial format that would have been standard for Australian radio drama of the period. Each installment advanced the story and left an unresolved thread for the next. This chapter structure also reflects the novel's own serialised origins: the story was built for episodic release from the beginning, first in The Australian Journal and then on radio.
After Radio
The story didn't stop with radio. Upfield's novel was published under different titles in different markets — Winged Mystery in England in 1937, and Wings Above the Claypan in the United States in 1943 by Doubleday Doran for the Crime Club imprint. These were the same novel adjusted for different audiences, a common enough practice for Australian fiction making its way into international markets at the time.
A television adaptation followed much later. Boney and the Claypan Mystery, the seventh episode of the 26-part Australian TV series Boney, aired in 1972. Peter Maxwell directed from a screenplay by Ted Roberts, produced by Fauna Productions. The television series ran to exactly the same episode count — 26 installments — as the radio serial in this catalog, a coincidence worth noting even if the two productions had nothing directly to do with each other.
In 2022, ETT Imprint reissued the 1941 radio serial as an audiobook under the title Wings Above the Diamantina: The 1941 Radio Serial, performed by the Morris West Theatre full cast. That reissue reflects continued interest in the production more than eighty years after it first aired — not a common fate for 1940s radio drama.
Why the Serial Still Works
What keeps Wings Over the Diamantina interesting isn't just the locked-room quality of its central puzzle — a woman drugged and strapped into a plane, a pilot who's nowhere to be found, a dry lake bed in the middle of nowhere. It's that the detective investigating all of this is someone the genre hadn't really produced before. Bony's identity isn't incidental to the stories; Upfield built the whole Bonaparte series around a character whose particular background and skills shaped how he approached investigation. That's a more sophisticated structural choice than it might appear, and it gave the radio drama something to dramatise beyond the mystery plot itself.
Upfield wrote 29 Bonaparte novels before his death on 13 February 1964. Wings Above the Diamantina came early in that run — third in the series — but it shows the formula already working confidently: an isolated setting, a genuinely puzzling crime, and a detective who sees what others miss. The radio adaptation caught that in serialised form, and the chapters that survive give a sustained look at how a 1941 Australian production handled Upfield's mix of outback atmosphere, character work, and procedural mystery.