Fellis dropped the brass dividers and the wooden ruler down through the floor-beam opening. It caught Kezra’s raised hand in the dim light of the trench.
Kezra lay on her back in the dry pea gravel, holding the lantern steady between her knees while she set the divider points against the wood carving.
The square on the underside of the larch beam was exactly eight inches across. At the bottom, Davren had scored a royal scale bar. One inch represented one hundred and twenty-eight paces.
Eight inches at one hundred and twenty-eight paces per inch.
One thousand and twenty-four paces.
A full Horizon-scale parcel (1,024×1,024×512 paces)—the ultimate scale of the Great Survey, sixteen times wider and over four thousand times larger in volume than a sixty-four-pace Reach square.
Kezra’s fingers trembled against the brass screw of her dividers.
Lying in the stone trench, Kezra held the wooden ruler flat against the carved larch beam, sighting along the cut cleanly lines with her left eye.
