Back inside the map room, Kezra Venn laid a flat slab of dark roofing slate across two cedar kegs and cleaned the surface with a damp rag. Beside her, Paxa Sel trimmed the animal fat lamp. Meanwhile, Fellis Dain sharpened three sticks of white carpenter’s chalk with his pocket knife. She used the thumb of his uninjured right hand to edge the tips to a fine ruling chisel.
“Give me the translation vector,” Fellis said. He watched Kezra set her brass dividers against Nym’s master Quarter diagram.
“Two hundred and fifty-six paces south-southwest, bearing two hundred and four degrees,” Kezra recited, her voice steady and clear. “Upright translation: dropped sixty-four paces down from the raised stone road bench into the mountain recess. Zero degrees rotation. The outer edge edges matched within three thumbs along all four margins after upright posture of the base planes.”
With a few quick, confident strokes of his chalk, Fellis laid out the map points on the slate. In the center, he drew the original outline of the mountain crag before the siege. Then, he used the fixed vector. He shifted the square parcel to its current position, hatching the displaced volume in clean slanted strokes.
