At Yurna University, amidst the hushed whispers of eager students, Professor Evelyn Sinclair stood at the front of the lecture hall. Her voice, measured and devoid of inflection, dissected complex mathematical concepts with clinical precision. The students hung on her words, their curiosity piqued by the enigmatic professor whose gaze held no warmth, only an unyielding focus on the equations that danced across the chalkboard. Little did they know she was orchestrating far darker calculations.