“What color would you say this was?” she asked.

“Yellow.” Mac quirked a brow. “You drove all the way here from North Audley Street to ask me whether something is yellow?”

“Of course I know it’s yellow. What kind of yellow, specifically?”

Mac peered at it. The color was vibrant, almost pulsing. “Cadmium yellow.”

“More specific than that?” She wiggled the handkerchief as though the motion would reveal the mystery. “Don’t you understand? It’s Mackenzie yellow. That astonishing yellow you mix for your paintings, the secret formula known only to you.”

“Yes, so it is.” With Isabella standing so close to him, her heady scent in his nostrils, he didn’t give a damn if the paint was Mackenzie yellow or graveyard black. “Have you been amusing yourself slicing up my pictures?”

“Don’t be silly. I took this from a painting hanging in Mrs. Leigh-Waters’s drawing room in Richmond.”

Curiosity trickled through Mac’s impatience. “I’ve never given a painting to Mrs. Leigh-Waters of Richmond.”

“I didn’t think you had. When I asked her about it, she told me she bought the picture from an art dealer in the Strand. Mr. Crane.”

“The devil she did. I don’t sell my paintings, especially not through Crane.”

“Exactly.” Isabella smiled in triumph, the red curve of her lips doing nothing to ease his arousal. “The painting is signed Mac Mackenzie, but you didn’t paint it.”

Mac looked again at the strip of brilliant yellow on the handkerchief. “How do you know I didn’t paint it? Maybe some ungrateful blackguard I gave a picture to sold it to raise money to pay a debt.”

“It’s a scene from a hill, overlooking Rome.”

“I’ve done many scenes overlooking Rome.”

“I know that, but this wasn’t one of yours. It’s your style, your brushwork, your colors, but you didn’t paint it.”

Mac pushed the handkerchief back at her. “How do you know? Are you intimately acquainted with all my works? I’ve painted quite a few Rome pictures since you . . .” He couldn’t bring himself to say “since you left me.” He’d gone to Rome to soothe his broken heart, painting the bloody vista day after day. He’d done too damn many pictures of Rome, until he’d grown sick of the place. Then he’d moved to Venice and painted it until he never wanted to see another gondola as long as he lived.

That was when he’d still been a debauched, drunken sot. Once he’d sobered up, replacing his obsession for single-malt with one of tea, he’d retreated to Scotland and stayed put. The Mackenzies didn’t view whiskey as strong drink—they viewed it as essential to life—but Mac’s drink of choice had changed to oolong, which Bellamy had learned to brew like a master.

At his words, Isabella flushed, and Mac felt a flash of sudden glee. “Ah, so you are intimately acquainted with everything I’ve painted. Kind of you to take an interest.”

Her blush deepened. “I see notices in art journals, is all, and people tell me.”

“And you’ve become so familiar with each of my pictures that you know when I didn’t paint one?” Mac gave her a slow smile. “This from a woman who changed her hotel when she knew I was staying in it?”

Mac hadn’t thought Isabella could grow any more red. He felt the dynamics in the room change, from Isabella in a bold frontal attack to Isabella in hasty retreat.

“Don’t flatter yourself. I happen to notice things, is all.”

And yet she’d known straightaway that he hadn’t painted what she’d seen in Mrs. Leigh-Waters’s drawing room. He grinned, liking her confusion.

“What I’m trying to tell you is that someone out there is forging Mac Mackenzies,” Isabella said impatiently.

“Why would anybody be fool enough to forge something by me?”

“For the money, of course. You are very popular.”

“I’m popular because I’m scandalous,” Mac countered. “When I die, the paintings will be worthless, except as souvenirs.” He set the slice of paint and handkerchief on the table. “May I keep this? Or do you plan to restore it to Mrs. Leigh-Waters?”

“Don’t be silly. I didn’t tell her I was taking it.”

“You left the painting on her wall with a bit sliced out, did you? Won’t she notice that?”

“The picture is high up, and I did it carefully so it doesn’t show.” Isabella’s gaze moved to the painting on his easel. “That is quite repulsive, you know. She looks like a spider.”

Mac didn’t give a damn about the painting, but when he glanced at it he wanted to groan. Isabella was right: It was terrible. All of his paintings were terrible these days. He hadn’t been able to paint a decent stroke since he’d gone sober, and he had no idea why he’d thought this one would be any better.

He let out a frustrated roar, picked up a paint-soaked rag, and hurled it at the canvas. The rag landed with a splat on Molly’s painted abdomen, and brown-black rivulets ran down the rosy skin.

Mac turned from the picture in time to see Isabella swiftly exiting the room. He sprinted after her and caught up to her halfway down the first flight of stairs. Mac stepped around her, slamming one hand to the banister, the other to the wall. Paint smeared on the wallpaper Isabella had picked out when she’d redecorated his house six years ago.

Isabella gave him a cold look. “Do move, Mac. I have half a dozen errands to attend before luncheon, and I’m already late starting.”

Mac took long breaths, trying to still his rage. “Wait. Please.” He made himself say the word. “Let us go down to the drawing room. I’ll have Bellamy bring tea. We can talk about the paintings you think are forged.” Anything to keep her here. He knew in his heart that if she walked away from this house again, she’d never return.

“There is nothing more to say about the forged paintings. I only thought you’d want to know.”

Mac was aware that his entire household lurked below, listening. They wouldn’t do anything so gauche as peer up the staircase, but they’d be in doorways and in the shadows, waiting to see what happened. They adored Isabella and had mourned the day she’d left them.

“Isabella,” he said, pitching his voice low. “Stay.”

The tightness around her eyes softened the slightest bit. Mac had hurt her, he knew it. He’d hurt her over and over again. The first step in winning her back was to stop the hurting.

Her lips parted, red and lush. Because he was two steps below her, Isabella’s face was on level with his. He could close the few inches between them and kiss her if he chose, feel her mouth on his, taste her warm moisture on his tongue.

“Please,” he whispered. I need you so much.

Molly chose that moment to climb toward them up the stairs. “Are you ready for me again, yer lordship? You still want me sticking me fingers in me Mary Jane?”

Isabella closed her eyes, her lips thinning into a long, immobile line. Mac’s temper splintered.

“Bellamy!” he shouted over the banisters. “What the devil is she doing out of the kitchen?”

Molly came closer, her smile good-natured. “Oh, her ladyship don’t mind me. Do you, yer ladyship?” Molly sidled around first Mac, then Isabella, her dressing gown rustling as she headed back up to the studio.

“No, Molly,” Isabella said in a cool voice. “I don’t mind you.”

Isabella lifted her skirt in her gloved hand and prepared to start around Mac. Mac reached for her.

Isabella shrank away. Not in loathing, he realized after the first frozen heartbeat, but because the hand he stretched toward her was covered in brown and black paint.

Mac slammed himself back against the stair railing. He wouldn’t trap her. At least not now, with all his servants watching and listening, and Isabella looking at him in that way.

Isabella moved down the stairs around him, very carefully not touching him.

Mac strode after her. “I’ll send Molly home. Stay and have luncheon. My staff can run your errands for you.”

“I very much doubt that. Some of my errands are quite personal.” Isabella reached the ground floor and took up the parasol she’d left on the hall tree.

Bellamy, don’t you dare open that door.

Bellamy swung the door wide, letting in a wash of London’s fetid air. Isabella’s landau stood outside, her footman ready with the door open.

“Thank you, Bellamy,” she said in a serene voice. “Good morning.”

She walked out.

Mac wanted to rush after her, grab her around the waist, drag her back into the house. He could have Bellamy lock and bolt the doors so she couldn’t leave again. She’d hate him at first, but she’d gradually understand that she still belonged with him. Here.

Mac made himself let Bellamy close the door. Tactics that worked for his barbaric Highland ancestors would be useless on Isabella. She’d give him that cool look from her beautiful eyes and have him on his knees. He had prostrated himself for her often enough in the past. The feeling of carpet on his knees had been worth her sudden laughter, the cool tinge leaving her voice as she said, “Oh, Mac, don’t be so absurd.” He’d pull her down to the carpet with him, and the forgiveness would take an interesting turn.

Mac sat down heavily on the bottom stair and put his head in his paint-stained hands. Today had been a misstep. Isabella had caught him off guard, and he’d ruined the beautiful opportunity she’d handed him.

“Oh, the painting’s all spoiled.” Molly hurried from the floors above in a flurry of silk. “Mind you, I think I look a bit funny in it.”

“Go on home, Molly,” Mac said, his voice hollow. “I’ll pay you for the full day.”

He expected Molly to squeal in pleasure and hurry off, but instead she sank down next to him. “Oh, poor lamb. Want me to make you feel better?”