The key turned without resistance, which was somehow worse than if it had not. Nadia had half-expected the lock to be seized — ten years of disuse, salt air, the slow calcification of mechanism — but the brass assembly moved with the smoothness of something well-made and deliberately maintained. Someone had oiled it. Not recently. But sometime in the period that was supposed to be empty.
The door swung inward on its own weight.
The room was large. Larger than the dimensions of the house suggested it should be — she had walked the corridor above this section of the ground floor and mentally subtracted the stairs and the butler's passage and come up with a room half this size. The lower library had been extended at some point, she realised: the far wall, behind the shelving, was plainly newer construction, perhaps a hundred years old against the rest of the house's two hundred. Salthouse or a predecessor had quietly doubled the room without altering the exterior face.
She did not touch the light switch. She stood in the doorway and looked.
The shelves held books — proper ones, not decorative arrangements — running floor to ceiling on three walls, interspersed at irregular intervals with flat wooden map cases and rolled charts clipped at their ends with bone toggles. The centre of the room was taken up by a long refectory table of dark oak. On it, arranged with a precision that was clearly purposeful: six wooden cases, closed and latched, varying in size. A brass-framed magnifier on an adjustable arm. A flat wooden box with a hinged lid that had been carefully chalked on its surface with the number 4.
Isabel came to stand beside her in the doorway and said nothing. Callum remained in the corridor and said nothing either. The silence had the quality of something agreed upon in advance, which it wasn't, and that struck Nadia as the more interesting thing.
She stepped inside.
The box marked 4 was the smallest on the table: perhaps thirty centimetres long, fifteen wide, the depth of a man's hand. She lifted the lid.
Inside, nested in shaped padding: a folded map, and beneath it, a small leather-bound book with no title on the spine.
She lifted the map first. It was old, a coastline chart of the eastern Baltic rendered in the meticulous style of the mid-twentieth century: harbours annotated, shipping lanes marked in faded red, depths given in fathoms in a slanted hand. Across two of the port annotations — Rīga and a smaller harbour whose name had been partially obscured by a deliberate smear of grey — someone had drawn a closed loop in the same careful blue ink she had come to think of as Salthouse's handwriting.
Inside the loop: the word VOSSBERG, and a date. 1984.
She set the map down flat on the table and opened the leather book.
It was a ledger. Not an accounting ledger — no columns of figures, no debits and credits. Instead: a sequential record of objects, each entry spanning a half-page. Object name, physical description, dimensions, country of last legitimate ownership, mechanism of transfer, and a column headed simply V. In that column: a number. Always a number. Thirty-seven entries across forty-two pages, running from 1981 to 2014. The final entry was dated six months after the last, with a single word in the V. column that was not a number.
DONE.
The same word Isabel had quoted. That's done, then. November 2015.
Nadia closed the ledger and stood with her hands pressed flat on the table surface, looking at the middle distance of the shelved far wall without seeing it, running through the internal arithmetic of what she was holding.
Thirty-seven objects. Spanning thirty-three years. Each one transferred through the same mechanism — Vossberg — which meant a pipeline, not an opportunistic transaction. A deliberate, structured operation for moving cultural assets through a permanent apparatus. And Salthouse had been recording it. Every entry written in his hand. Not as a participant, she thought — the precision was too complete, the coverage too long. As a witness. As an archivist.
He had been building a case.
