Guided by a cryptic QR code etched on a forgotten chalkboard in an abandoned lecture hall, Luca accessed a hidden dark web forum. There, he downloaded the Rossetti PDF, only to discover it was no ordinary text. The file adapted to his cursor—equations rearranged themselves in real-time, holographic models of black holes flickered at his fingertips, and sidebars whispered hints in his native tongue. Intrigued, Luca dove in, solving his differential equation in under an hour. But the PDF had questions of its own.