The key was in Thomas Marsh's hand by four-fifteen on Friday afternoon. Rowan watched from the east rafter as the old mill keeper walked to the sluice gate mechanism with the measured, unhurried stride of a man who had done this operation a thousand times. He fitted the hexagonal head into the gate lock, gripped the iron handle, and pushed.
The sluice gate rose. The sound was immediate—a rush of water hitting the wheel paddles with the full force of the Millcreek autumn current, amplified in the stone-walled flume box into something felt as much as heard. A bass vibration that moved through the floor timbers and up through the beams and into Rowan's paws on the rafter.
Then the wheel began to turn, slowly at first, each paddle shedding a white sheet of water as it crested, then faster as the river current took full hold. The pit wheel below began to engage. The great wallower gear meshed with the vertical shaft. The spur wheel above began its rotation.
The millstone drive engaged with a deep, familiar thum that had been absent for thirty-six hours and now returned like a long-held breath finally released. Thum-thum-thum. The mill was running.
Rowan felt the vibration in his sternum, behind his ribs, in the bones of his forepaws on the beam—the mill's heartbeat returning. Its acoustic signature exactly as he had memorised it: the slight irregularity on the fourth beat that was just the character of the old spur wheel tooth and not a fault, the rising harmonic of the grain hopper beginning to fill and shift.
Below, Eli was at the hopper, running his hand along the side of the feed mechanism with that listening expression he had—not testing it, exactly, just touching it as you would touch something that had been gone and returned. Thomas Marsh was standing at the sluice gate, looking at the wheel.
He stood there for a long time without moving, with the afternoon light coming through the west window in long amber bars across the stone floor, the wheel sound filling the mill from foundation to ridge beam, and the smell of fresh-ground wheat beginning to rise from the millstone below.
Then he sat down on the grain sack bench, took out a creased handkerchief, and pressed it briefly to his eyes. In the rafter, Rowan tucked himself more firmly into the notch of the beam junction and settled his tail around himself. Hewitt's business card was still on the floor where Thomas had stepped on it.
It had a crease across the middle and a heel print over the name, but the telephone number was still legible. Rowan noted this with the same attentiveness he brought to everything that passed through the mill.
He had no particular plan involving the telephone number—the running of the wheel was its own sufficient answer to Hewitt's proposal—but he had also learned from three winters of mill observation that it was useful to know which things could still be read.
From his high vantage in the rafter, Rowan tracked the sound of the waterwheel for the rest of that Friday afternoon with the particular attention of someone listening to something they had been afraid they might not hear again. The wheel's acoustic signature was exactly as he remembered it. The pit wheel's engagement note. The wallower gear's harmonic. The slight flat in the spur wheel's rotation on every fourth revolution.
Not a fault, just the character of that particular tooth, worn slightly shorter than the others after a century of use. All of it exactly as it had been before Thursday. At dusk, Thomas locked the south door from the inside and walked through the mill with a lantern, checking the gear housings and drive belts in the way he always did at of a working day.
His inspection took longer than usual—not because anything was wrong, but because he seemed unwilling to complete it and go inside. He walked the circuit twice, the lantern throwing warm light across the stone walls and the great oak timbers. Rowan watched from above as the old man moved through his mill in the evening silence, the wheel still turning outside in the dark, the water running on.
Rowan twisted his body into the tight gap between the gear housing and the stone wall, his small forepaws working carefully around the wet brass surface of the submerged key. The churning water tugged at his fur with cold, insistent fingers. He planted all four paws firmly and pulled against the current with everything he had, feeling the key shift fractionally in the sluice gravel.