Ts01.4.6.12 -

When the temperature crossed -15°C, the ice didn’t melt. It sang .

The hum shifted pitch. The cryo-chamber cracked. Ts01.4.6.12

Leo pulled up the old logs. "Nothing. But according to this…" he tapped the sample's expanding data cloud, "…that's the day we stopped being the original timeline. Something overwrote us. And this ice core? It's a backup. A fossil of the real history." When the temperature crossed -15°C, the ice didn’t melt