The lab lights hummed like distant stars as Mara slid the DSV56RJBK from its padded case. It was small and unassuming: matte black casing, a faint triangle etched near the port, a serial string no one at the company could quite place. Rumors called it a dev board, a legacy logger, even a prototype that shouldn't exist. For Mara it was simply the last chance to fix a system the company had promised to retire years ago.