Chapter 18 The Queen's Gambit
Sophia's POV
"AB negative," the girl said.
I smiled.
I could not help it. After fourteen months of dead ends and careful waiting and watching my grandson deteriorate degree by degree inside his own home, the piece I needed had just spoken two words and changed everything. I let myself feel it for exactly three seconds. The relief of it. The rightness of it.
Then I put the smile away and got back to work.
"Good," I said. "That is very good."
Brittany was watching me with those steady eyes. She had not moved since reading Marcus's name on the paper. The paper was still in her hands, held loosely, like she had forgotten she was holding it. But her face was doing something I recognized. I had seen it in her mother's face once, a long time ago. The expression of a person reorganizing everything they know into a new formation, fast and quiet, without letting any of it show on the outside.
Clara Redman had worn that expression the day she realized the Blackwell brothers' father was stealing her work. She had sat across from me at my kitchen table, her hands perfectly still and her eyes burning, and said, very calmly, "Tell me everything you know."
Her daughter was sitting across from me now wearing the exact same expression.
"You have questions," I said.
"Several," Brittany said. She folded the paper and set it on the table beside the bottle. "How long have you known it was Marcus?"
"Three months," I said. "Elena identified him. She found a second set of medical supplies hidden in the back of his office closet during a routine check. The same compound. Prepared doses in individual syringes, labelled by date."
"He had a schedule," Brittany said.
"A very precise one," I said. "Adjusted regularly based on David's physical response. Whoever is directing Marcus knows pharmacology. This is not an amateur operation."
"Thomas," Brittany said.
I looked at her. "What makes you say Thomas specifically?"
"He has the motive. He has access to Marcus. And he is the one who came to my room the first night." She paused. "A man who walks into his brother's wife's bedroom in the middle of the night is not a man who is afraid of consequences. He thinks he is untouchable. That kind of confidence comes from having a plan already in motion."
I studied her face for a moment. "You are correct. Thomas is directing it. Richard is funding it. The other three brothers are compliant but passive. They want the outcome without the personal risk."
Brittany nodded slowly. "And Marcus has been with David for five years."
"Which means the poisoning began from inside a relationship David trusted completely," I said. "That is what makes it so difficult to confront. David is not a naive man. He does not trust easily. Convincing him that someone he has relied on for five years has been systematically destroying his health will require more than a name on a piece of paper."
"It will require proof he cannot argue with," Brittany said.
"Yes."
"Medical proof. Blood work. Documented dosage records. The supply chain connecting the compound to a purchase order Marcus signed."
"All of which exists," I said. "And all of which Elena has been quietly collecting for three months."
Brittany was quiet for a moment. She looked at the bottle on the table, then back at me. "You said the antidote needs to be administered secretly. Hidden in his food over several weeks. And David cannot know."
"Not until his system has recovered sufficiently," I said. "The poison suppresses his body's ability to process certain compounds. If we confront him with the full truth before the antidote has had time to work, and the poisoner responds by increasing the dose, David's body may not be strong enough to withstand the escalation."
"So we protect him by lying to him," Brittany said.
"We protect him by being smarter than the people trying to kill him," I said. "There is a difference."
She looked at me steadily. I looked back at her. Neither of us looked away.
"The donation," she said finally. "Walk me through it."
"Elena will assist," I said. "She has medical training. The procedure takes twenty minutes. Standard needle, standard volume, slightly below the normal donation threshold to account for your pregnancy. The blood is processed here, in my private suite, using equipment the Swiss chemist shipped six months ago. The resulting enzyme compound is then integrated into the antidote formula." I gestured toward the bottle. "That completes this."
"And then?"
"And then we begin administration. Small amounts, undetectable in flavor, added to his food once daily. Elena manages his meals. She will handle it personally."
"How long before it works?"
"Full recovery takes six to eight weeks," I said. "But meaningful improvement begins within two. The trembling reduces first. Then the cognition sharpens. Then the physical strength returns." I paused. "You have noticed the trembling."
It was not a question. Brittany's expression confirmed it without her needing to speak.
"He hides it well," I said. "But not from everyone."
She looked down at her hands for a moment. When she looked back up, something had shifted slightly in her eyes. Something that was not purely strategic. I noted it and said nothing about it.
"Who else knows about this plan?" she asked.
"You, me, and Elena," I said. "That is all. Not Leo. Not David. No one else."
She looked up sharply. "You know about Leo."
"I know about the passage in the walls," I said calmly. "I know your cousin has been living in it for two and a half days. I know he brought you a USB drive with surveillance footage and financial records." I watched her process that. "Elena found evidence of his entry through the service tunnel four days ago. We chose not to remove him."
"You chose not to remove him," Brittany repeated slowly.
"He is useful," I said simply. "And he is yours. That is enough for me."
Brittany sat with that for a moment. Then she said, "The camera feed to my room was cut tonight. While David was in the East Wing with me. Someone cut it deliberately."
"Thomas," I said. "He has been building a second camera network for months. He cut your feed tonight to create a window. He wanted to come to your room again while David was distracted." I let that land before continuing. "He did not come because David moved too fast. But he will try again."
"I know," Brittany said quietly.
The fire in the hearth had burned low while we talked. The room was dimmer now, softer, and I looked at this girl in the half light and felt the weight of everything I had carried for twenty years settle differently on my shoulders. Not lighter. Just differently distributed, shared across two pairs of hands instead of one.
"I have one more question," Brittany said.
"Ask it."
"Three women died in this house before me." Her voice was level. "You were here for all three of them. You had Elena. You had your sources. You had everything you've just described to me." She looked at me without accusation but without softness either. "Why are they dead?"
The question sat between us like something with real weight.
I looked at her for a long time before answering.
"Because none of them," I said carefully, "looked at me the way you are looking at me right now."
Brittany held my gaze.
"They were frightened," I said. "Fear makes people reactive. Reactive people make mistakes. Mistakes in this house are fatal." I leaned forward slightly on my cane. "You are not frightened. You are angry. And you are thinking." I paused. "That is why you are going to survive what they did not."
Brittany was quiet for a moment.
Then she said, "When do we start?"
I reached into my robe pocket one final time and placed a small velvet case on the table beside the bottle.
"Now," I said. "Open it."
Brittany reached out and opened the case.
Inside it, nestled in dark velvet, was a necklace. A red stone shaped like a teardrop, set in gold, hanging on a fine chain.
Her breath caught audibly.
"That is your mother's necklace," I said quietly. "The original. What Bianca is wearing is a replica I had made the week after your wedding, and what I placed on that woman's neck without her knowing is fitted with a transmitter the size of a grain of rice."
Brittany looked up at me with wide eyes.
"We have been listening to everything inside Adam's house," I said, "for six weeks."