First light lay bright on the home paddock when Mercy carried her father's whistle down to the rail and spent it, at last, on the grey. She had waited for a morning alone with the mare, or as alone as a duke's yard allowed: Gabriel at her shoulder, come the long way round again; Dob loitering at the gate.
The grey stood mid-paddock in the cold steam of her breath, a well-made animal grazing with the ease of a horse never asked a hard question. Mercy set two notes against her teeth and let them go, Kit's call, her father's call, the whistle the whole servants' hall swore could bring Damson across a field before the boy could count to ten.
The mare did not flick an ear. Mercy whistled again, cleaner, carrying. Nothing. The grey lifted her head as any horse lifts its head at any sound, incurious, then went back to the frozen grass. A champion supposed to have known that call since a filly, a mare a dead boy had loved daft, and no more answer in her than in a gatepost.
"She's deaf, belike," said Dob, from the gate, hopeful, because the other thing was worse.
"She hears you fine." Mercy did not raise her voice. "She turned to the barrow squeak twice. She hears. She only doesn't know it." She rested her forearms on the rail and looked at the mare as her father had taught her to look at a beast a man was trying to sell as something it was not: not at the whole animal, which lies, but at the parts, which cannot. "Your Grace. Fetch me the stud book. The old one, in your father's hand."
He went himself, and came back with a great foxed ledger, the spine gone soft, the old duke's copperplate marching down the pages. Mercy found the mare's own entry, set down fifteen years past when Damson was a foal at foot, in a dead man's hand.
"Damson," she read, low. "Grey filly. Off the Ravensmoor line. Splint, near fore, thrown as a yearling. Never lamed her, but stands proud of the bone, may be felt. Wall-eyed, off side." She read it twice, then lifted her eyes to the mare thirty feet off. Two clean forelegs, not a splint on either. And the eye that side as brown and whole as the other. "Look for yourself," she said, and Gabriel came to the rail, and she showed him the words a dead man had set down for the mare he bred, then the living animal that carried neither.
"The old duke wrote her plain. A splint you could feel, proud of the near fore. A wall-eye, off side. Fifteen years back, in his own pen, before ever I was in this county." She closed the book on her thumb. "That mare has clean legs and two brown eyes. Whatever she is, she is not the horse your father wrote in this book."
Gabriel had gone very still. "She has stood in that paddock four years."
"She has stood in that paddock four years being called Damson."
Old Thady had come up on the far side, drawn by the whistle that failed. "Master Muir. When did you last handle the grey? Truly handle her, feel her legs, pick her feet?"
The old man's jaw worked. "Not since. No. Not in four year, near." He said it slow, hearing it as he said it. "Master Vaux keeps her particular. On the duke's order. Nervy since the boy. Best left to one hand. And a man don't argue the mare he's told to leave be." His face was going grey. "Four year I've took his word she were the same mare, and never laid a hand on her to know."
"Because there was no reason to," Mercy said, not unkindly. "One grey looks much like another, to a man not hunting the difference. That's how it's done." She looked back at the placid stranger. "A mare that throws champions doesn't go to grass. She goes to stud, where the money is, quiet, off the books, a barren look-alike in her place so nobody counts a foal missing. Find me the grey with a splint and a wall-eye, and I'll show you the mare this house still thinks it owns."
Then a colder thing came to her, and she said it low, for Gabriel alone. "Kit could call Damson across a field with two notes. The whole hall says it. He'd known that mare since she was a filly at foot." She let it settle. "The morning they walked the true grey out and stood this stranger in her stall, the boy would have whistled and had no answer, and known inside a day what has taken me a fortnight to prove. He'd have gone straight to you with it." Her hand tightened on the ledger. "That is why he could not be let live in this yard. Kit knew the switch, or would within the week. So the boy was made reckless in the telling, and the horse under him made a killer, and the one soul who could have named a ringer at a glance was under a stone before he ever drew the breath to."
At the gate, Dob had gone rigid over his barrow, and Mercy caught it: the boy's eyes flicking to the tack-room door and away, the whole-body flinch he gave to a thing not yet in the yard, the same learned fear the black colt gave to a left hand. He knew something in his body before his mouth could shape it, and the shaping terrified him.
Gabriel looked down at his father's hand a long moment, and when he spoke it was the flat, self-indicting voice, but lower now, with a new thing under it that was not guilt. "Four years I have owned a horse that was never mine, and grieved a brother on a colt that was poisoned, and dismissed no one, and asked nothing." He shut the ledger. "Say it plainly, as you have made me say the rest. My stable has been run by a thief, and I called it loyalty."
"I'll say it plainly when I can prove it plainly. Not before. A whistle a mare won't answer isn't a rope round a man's neck. It's a question. Say the wrong grey's a ringer to the wrong ear, and by nightfall the real one's dead in a ditch forty miles off, and there's no proving anything again."
She took the book back gently and held it against her, and glanced once at Dob, and lowered her voice under the wind. "Say it to no one. Not Thady, not Nan, not the wall. From here it's ours to carry, quiet, until we can set it down where it can't be picked back up."