Isabel, now 76, put down her magnifying glass. She looked at the melted platters. She smelled ozone and decay. She asked one question: "What is the story inside?"

Then the impossible arrived.

That night, Mateo understood the lesson: Anaya Soluciones was not in the business of hardware. It was in the business of value, memory, and continuity.

A forensic accountant named walked in with a data safe. Inside was a RAID 5 array of six 10-terabyte hard drives from a corrupt mining conglomerate. The drives had been in a fire. Then a flood. Then someone had taken a powerful magnet to them. The data on those drives was the only evidence to bring down a cartel-linked money-laundering ring. Three other "data recovery" firms had declared it biohazard e-waste.

Dr. Rojas explained: The files contained the GPS coordinates of 43 missing students from 2014. The families had been waiting for four years.