Mara smiled. It was not a pleasant smile. "I know. That's the problem. An alibi is a story two people tell. But a mansion ? A mansion is a thousand silent witnesses. The floorboards that creak. The doors that latch from one side only. The wax from a candle you carried because you were afraid of the dark, Elara—wax you stepped in on your way back from the west wing."
"The mansion keeps no secrets," Mara said, pulling out her handcuffs. "It just waits for someone smart enough to listen."
"The staff is you and Silas, tonight. The household was given the night off. Convenient." Mara crouched down, peering at a faint smear on the marble floor near the newel post. Not blood. Wax. Beeswax from a candle. Mansion -Alibi-
Silas nodded, a small, precise motion. "From nine until… well, until the commotion. We were reviewing the revised trust documents. Mr. Blackwood was alive when I arrived. He was in his study, quite irate."
She looked up at the chandelier again. It was electric. No candles. Mara smiled
She pointed to the smear on the floor.
"You went to him. You argued. He threatened to cut you off. You pushed, or he fell. Then you ran back to the east wing, lit a candle to see your own terror, and called Silas. Your lover. Your co-conspirator. He arrived not at nine, but at ten. After the murder. And the two of you spent an hour crafting the perfect, useless alibi." That's the problem
"About the documents?"
Elara looked at Silas. Silas looked at the floor. The chandelier’s crystals tinkled once, softly, as if laughing.