A painted river scene in soft early light. A small timber houseboat with a white weatherboard cabin, a short stovepipe and a lantern beside the door sits low on the water against a sandy bank, moored bow and stern with a plank run ashore. Washing hangs on a line along the cabin side, a curtain shows at one window, and a bucket and a fishing rod rest on the open foredeck. Gum trees lean over the bank at the right, a low scrubby bank runs away to the left, and the still water carries their reflections under a pale sky.

Her father's houseboat, on a quiet reach of the Nerang. Low in the water, plainly not built for open sea, lived on rather than kept. It is her home in all twenty-four books: she is never homeless, never billeted, never in somebody else's staff room.

Inheritance header

Set in the world of The World of the Gold Coast — a strip of Queensland sand between the surf and the Nerang River in 1946, that nobody had yet thought to name. Here is what's ours.

The patch

A woman with no papers, living on the water, working her way toward a house.

Ottilie Sommerfeld was born at sea and her birth was never registered on the Australian side, so on paper she does not quite exist — which is a permanent problem in a district that is busy turning itself into paper: titles, survey pegs, subscription registers, probate files, ledgers. She lives aboard her dead father's houseboat on a quiet reach of the Nerang, pours the tea at the police station where he used to clean after dark, and takes whatever casual work the week offers.

Her father left her no money. He left her six objects, placed with households across the district, and a notebook that records what each object is and which ledger holds its receipt — and never who is holding it. So every book starts as research and ends with her taking a lawful casual job inside somebody else's household or institution, with a real reason to be there and no standing whatsoever. The murder is what she finds once she is through the door.

A painted corridor in a country police station, panelled in pale green below and cream above, with a parquet floor. A wooden tea trolley stands in the middle carrying a large enamel urn, stacked cups and saucers, a jug, a biscuit tin and a folded checked cloth. A bentwood bench sits against the wall beyond, coats and two felt hats hang on a stand in the foreground, and a uniformed constable walks away down the corridor toward a sunlit window.

The station corridor, and the trolley she pushes down it. Her father cleaned here after dark; she pours the tea. She is in the room, and nobody counts her as being in it, which is the whole trick of her.

The set

A painted stretch of bright sheltered water under a high pale sky. A small varnished clinker dinghy sails across the middle of the frame under a single cream sail, one figure in a hat sitting aft at the tiller. Sunlight scatters in points across the low chop. A long low line of pale dunes and scrub closes the far shore, with faint hills beyond.

Ten to fourteen feet of varnished overlapping plank, a simple mast, a centreboard. It is how a woman with no money reaches places other people pay to reach, and it is genuinely dangerous in a wind shift. Sheltered water only. Never through the surf.

The cast

Small, constant, and ageing in real time across ten years.

A painted timber jetty running out into a wide calm river. A corrugated iron boatshed stands at the left with a clinker hull upturned on trestles beside it, stacked crab pots, drums and a tin tub on the boards. One man sits mending gear, another carries a wooden crate along the jetty, and a third sits on a bollard looking out. A dog lies asleep on the boards. Several small fishing launches are moored along the jetty and out on the water, with low scrub and sand banks beyond.

The jetty and its regulars: live-aboards, working gear, a hull up on the hard and somebody always about. A fishbowl that floats, and the one closed circle that travels with her from book to book.

The rhythm

Twenty-four self-contained mysteries carried on one continuous, physical, measurable ambition. Each book is its own fair-play puzzle, solved on timeline, opportunity and attention — never on forensics, never on ballistics. Each is also one rung of a ladder that runs the whole decade.

The ladder is six rungs, one per arc, and it is causal all the way down: no materials means she fells her own timber with the tools from an earlier arc, and those become the piles and the fence; no road means the finished house has to arrive by water.

And the plan fails twice, on purpose. The rhythm across the six arcs is win, win, refuse, double win, lose, win. Once she is handed the thing she has been working toward, understands what it actually is, and gives it back. Once the object is simply gone — sold years ago at a clearing sale, never recovered — and what the arc gives her instead is people, and the knowledge that heavy things move by water at all. She is also, at one point, wrong rather than merely thwarted: the cheap block is cheap because it is swamp, and swamp will not take footings.

She does not stop living aboard. She stops having to be tolerated.

Deaths are off-page and bloodless. Jeopardy is weather, tide, attention and money. Warm, dry, unsentimental, closed-door, and restorative — and six of the twenty-four books have no body in them at all.

The question the series asks

### What is a place worth before anyone has decided what it's for?

The Line answers it in the most literal available currency: one woman trying to buy a piece of a district while the district's price runs away from her, over ten years, in public. Around that, naming as power — Elston against Surfers Paradise, and the Gold Coast sneer coming up the road — and what a place knows set against what a place is worth on paper.

Change is the subject, not the threat. This is not a lament, and development is never the default villain.

Where to start

Book 1, A Death in Probate. One continuous reading order, twenty-four books, shelved as six four-book arcs.

Comps: Kerry Greenwood (Australian period woman sleuth — warmer, poorer, closed-door), T. E. Kinsey (period wit, a chaste spark with a policeman), and the Alexander McCall Smith register of competence and affection.