The Signature Revealed

The morning light crept through the blinds of Anya's temporary workspace, casting thin stripes across the dozens of Sudoku grids that now covered every surface of the small hotel room. She had been here for three days, barely sleeping, eating only when Thorne brought takeaway containers that grew cold before she touched them.

The puzzles were everywhere. On the walls, pinned with thumbtacks. On the bed, spread in careful rows. On the floor, arranged in a pattern only she could see. And on her laptop screen, where she had superimposed them, layer upon layer, searching for the thread that connected them all.