The Cartographer's Wrist

Forty days is not a long time to plan a heist against an institution that has spent four centuries planning against you. Sefa rented a second room — a rule of hers, never plan a job in a room anyone could connect to your face — and she covered one wall with a map of the Guildhall drawn from memory and a stolen survey, and she stood in front of it with Corvane Ashe, the two of them like a pair of mismatched students before a problem neither could solve alone. "There are three ways into the Glass Vault," Corvane said. He had a Cartographer's voice, dry and exact, and Sefa had to keep reminding herself to distrust it. "The Assessors' lift, which reads the pulse of everyone aboard and logs it. The conduit-channels, which are full of raw vault-glass and would unmake an unprotected body before the second turning. And the Cartographers' stair, which I may walk freely, and you may not, because the stair is warded to the Guild's own blood." "Warded how?" "A working laid into the stone. It tastes the blood of anyone who sets foot on the first step. Guild blood passes. Other blood—" he made a small gesture— "the stair informs the Assessors, politely, and they come." Sefa studied the map. She had spent six years learning that every ward was a sentence written by a person, and every sentence written by a person had a grammar, and grammar could be argued with. "It tastes blood," she said slowly. "Not a license. Not a key. Blood. Guild blood." "Yes." "Then the question isn't how do I get past the stair." She turned from the map to look at him, and for the first time since the drying-room she felt the old clean thrill, the one that had nothing to do with revenge and everything to do with the puzzle. "The question is whether the stair can be made to taste Guild blood that isn't standing on it. A ward is a reader, Corvane. It reads a sample. And a reader can be fed." Corvane Ashe was quiet for a moment. Then something moved in his tired face — not quite a smile, but its cartographer's cousin, the look of a man watching a coastline resolve out of fog. "You would need Guild blood," he said. "Freely given, fresh, and a great deal of it, and you would need a Cartographer willing to bleed for a thief." "I would," Sefa agreed. "Do I know one?" He looked at the glowing key fused into his own wrist. He looked at the map of the building that had made him a coward and a prisoner in the same ceremony. And Sefa watched the senior Cartographer of Aldemar decide something, the way she had once watched him decide something else, six years ago, above black water — except this time the arithmetic came out the other way. "You know one," Corvane said. "But understand what you are buying, Sefa, because you of all people should never again sign an invoice you have not read. If we do this — if we turn the Vault off — then every working in this city stops at once. Every metered lamp. Every mended bone holding a body together. Every licensed flood-wall. Magic in Aldemar will not become free. It will become absent, all of it, in a single breath, and people will die in that breath, and their names will go on a list, and the list will have your handwriting on it. That is the receipt for the thing you have wanted for six years. I am the only person who will ever hand it to you honestly. Read it. Then tell me whether you still want the eleventh key." Sefa Iron-Quill stood in a rented room in front of a map of her revenge, and for the first time in six years she did not have a number ready. She looked at the list she could not yet see, and she began, slowly, to count what was actually on it.