The mystery?🤫

Previously

…Eleanor, knowing this, had waited until he was engrossed in his work, then used a specially crafted lock-picking tool, a skill she’d acquired long ago for… other reasons. She’d entered, confronted him, and in the ensuing struggle, the fatal blow had been struck. She had then meticulously re-locked the door from the outside, ensuring that the illusion of a secure, undisturbed room remained intact. The ink smudge, the scratch on the letter opener, the faint red mark on Finch’s wrist – the overlooked details, the silent witnesses, had finally spoken. The darkness, it seemed, had been hiding in plain sight, cloaked in elegance and sophistication, waiting for its moment to strike.