Robin stared up at the ceiling. She had probably imagined it. Old houses made strange noises that sounded human until they were familiar to you. Her parents’ radiators made chugging noises in the night and their old doors groaned in the central heating. It was probably nothing.

A second creak sounded, several feet from where the first had occurred.

As she got to her feet, Robin scanned the room for anything she could use as a weapon. A small, ugly bronze frog ornament sat on a table beside the sofa. As her fingers closed over the cold pock-marked surface, she heard a third creak from overhead. Unless she was imagining it, the footsteps had now moved all the way across a room directly above the one in which she was.

Robin stood quite still for almost a minute, straining her ears. She knew what Strike would say: stay put. Then she heard another tiny movement overhead. Somebody, she was sure, was creeping around upstairs.

Moving as quietly as possible in her socked feet, Robin edged around the drawing room door without touching it, in case it creaked, and walked quietly into the middle of the stone-flagged hall, where the hanging lantern cast a patchy light. She came to a halt beneath it, straining her ears, heart bumping erratically, imagining an unknown person standing above her, also standing, frozen, listening, waiting. Bronze frog still clutched in her right hand, she moved to the foot of the stairs. The landing above her was in darkness. The sound of the dogs’ barking echoed from deep in the woods.

She was halfway towards the upper landing when she thought she heard another small noise above her: the scuff of a foot on carpet followed by the swish of a closing door.

She knew that there was no point calling out “Who’s there?” If the person hiding from her had been prepared to show their face, they would hardly have let Kinvara leave the house alone to face whatever had set off the dogs.

Reaching the top of the stairs, Robin saw that a vertical strip of light lay like a spectral finger across the dark floor, emanating from the only lit room. Her neck and scalp prickled as she crept towards it, afraid that the unknown lurker was watching from one of the three dark rooms with open doors she was passing. Constantly checking over her shoulder, she pushed the door of the lit bedroom with the tips of her fingers, raised the bronze frog high and entered.

This was clearly Kinvara’s room: messy, cluttered and deserted. A single lamp burned on the bedside table nearest the door. The bed was unmade, with an air of having been left in a hurry, the cream quilted eiderdown lying crumpled on the floor. The walls were covered with many pictures of horses, all of them of significantly lesser quality, even to Robin’s untutored eye, than the missing picture in the drawing room. The wardrobe doors stood open, but only a Lilliputian could have been hidden among the densely packed clothes within.

Robin returned to the dark landing. Taking a tighter grip on the bronze frog, she oriented herself. The sounds she had heard had come from a room directly overhead, which meant that it was probably the one with the closed door, facing her.

As she reached out her hand towards the doorknob, the terrifying sensation that unseen eyes were watching intensified. Pushing the door open, she felt around on the interior wall without entering, until she found a light switch.

The stark light revealed a cold, bare bedroom with a brass bedstead and a single chest of drawers. The heavy curtains on their old fashioned brass rings had been drawn, hiding the grounds. On the double bed lay the painting, “Mare Mourning,” the brown and white mare forever nosing the pure white foal curled up in the straw.

Groping in the pocket of her jacket with the hand not holding the bronze paperweight, Robin found her mobile and took several photographs of the painting lying on the bedspread. It had the appearance of having been hastily placed there.

She had a sudden feeling that something had moved behind her. She whipped around, trying to blink away the shining impression of the gilded frame burned into her retina by the flash on her camera. Then she heard Strike’s and Kinvara’s voices growing louder in the garden and knew that they were returning to the drawing room.

Slapping off the light in the spare room, Robin ran as quietly as possible back across the landing and down the stairs. Fearing that she wouldn’t be able to reach the drawing room in time to greet them, she darted to the downstairs bathroom, flushed the toilet, and then ran back across the hall, reaching the drawing room just as her hostess re-entered it from the garden.

67

… I had good reason enough for so jealously drawing a veil of concealment over our compact.

Henrik Ibsen, Rosmersholm

The Norfolk terrier was struggling in Kinvara’s arms, its paws muddy. At the sight of Robin, Rattenbury set up a volley of barking again and struggled to get free.

“Sorry, I was dying for the loo,” panted Robin, the bronze frog hidden behind her back. The old cistern backed up her story, making loud gushing and clanking noises that echoed through the stone-flagged hallway. “Any luck?” Robin called to Strike, who was climbing back into the room behind Kinvara.

“Nothing,” said Strike, now haggard with pain. After waiting for the panting Labrador to hop back into the room, he closed the window, the revolver in his other hand. “There were definitely people out there, though. The dogs knew it, but I think they’ve taken off. What were the odds of us passing just as they were climbing over the wall?”

“Oh, do shut up, Rattenbury!” shouted Kinvara.

She set the terrier down and, when it refused to stop yapping at Robin, she threatened it with a raised hand, at which it whimpered and retreated into a corner to join the Labrador.

“Horses OK?” Robin asked, moving to the end table from which she had taken the bronze paperweight.

“One of the stable doors wasn’t fastened properly,” said Strike, wincing as he bent to feel his knee. “But Mrs. Chiswell thinks it might have been left like that. Would you mind if I sat down, Mrs. Chiswell?”

“I—no, I suppose not,” Kinvara said gracelessly.

She headed to a table of bottles sitting in the corner of the room, uncorked some Famous Grouse and poured herself a stiff measure of whisky. While her back was turned, Robin slid the paperweight back onto the table. She tried to catch Strike’s eyes, but he had sunk down onto the sofa with a faint groan, and now turned to Kinvara.

“I wouldn’t say no, if you’re offering,” he said shamelessly, wincing again as he massaged his right knee. “Actually, I think this is going to have to come off, do you mind?”

“Well—no, I suppose not. What do you want?”

“I’ll have a Scotch as well, please,” said Strike, setting the revolver down on the table beside the bronze frog, rolling up his trouser leg and signaling with his eyes that Robin, too, should sit down.

While Kinvara sloshed another measure into a glass, Strike started to remove the prosthesis. Turning to give him his drink, Kinvara watched in queasy fascination as Strike worked on the false leg, averting her eyes at the point it left the inflamed stump. Panting as he propped the prosthesis against the ottoman, Strike allowed his trouser leg to fall back over his amputated leg.

“Thanks very much,” he said, accepting the whisky from her and taking a swig.

Trapped with a man who couldn’t walk, to whom she ought in theory to be grateful, and to whom she had just given a drink, Kinvara sat down, too, her expression stony.