If there was something to find, she'd find it.
Sheeting joints and fractures ran through the walls of the cave. Cracks up to several inches wide painted a darker web against the darkness. When she got up close enough to see detail, she found the walls jagged and sharp with differential etching. The floor was covered with a mix of dark, sharp, ragged fragments and larger stones. Underneath, slabs of rock had been differentially lifted, creating a cracked, uneven surface almost like old rural roads broken by frost heaves back home.
She was no geologist, but all indications were that the caves had been formed through dissolution, when water or some other liquid worked its way into the rock and selectively dissolved those sections of the rock made up of a certain chemical, such as in the limestone caves back on Earth. That dissolution-of both tiny veins of the chemical and larger deposits-would account for the jagged, etched look to the walls, the fractures, and the caves themselves. What she wouldn't give for some sign of previous habitation right now. She ran through the menu of scanning options on her helmet viewer, thinking she'd tried every one likely to show something and even some that weren't.
"Run thermal scan," Anna directed.
"Time to pack it in, Sheridan," Razor said.
"I have a bet to collect on."
"Was that the one where you said you could find the Centauri lost colony?"
"Oh Sheridan, you're cruel."
"And you love it."
The results of the thermal scan came up, and Anna jumped, banging her helmet against the top of the module.
"There's a slight heat source..."
They could see it on their screen.
"A foot below the surface, beside the cave wall."
They were all quiet now, as she narrowed the scan and clarified the dimensions of the