The tunnel swallowed the light quickly.
Kael moved slowly, the beam of his lamp sweeping across the rough stone ahead of him. Every step echoed faintly through the narrow passage.
The steel survey rod felt solid in his hand.
Comforting.
He tried to convince himself he was only being cautious.
The beam of his lamp drifted upward for a moment, brushing across the ceiling.
A cluster of pale shapes stirred in the light.
Cave bats.
The small creatures clung to the stone overhead, thin wings wrapped tightly around their bodies. One shifted slightly but didn't take flight.
Kael relaxed a little.
Bats meant the tunnels were stable enough to support life.
Which meant these passages had probably existed for a long time.
Unfortunately…
Bats weren't the only things that liked caves.
The scraping sound came again.
Closer now.
Kael froze.
Scrape.
A quick scuttle across stone.
He exhaled slowly.
"Great," he muttered.
The sound was familiar.
Too familiar.
Kael edged forward and rounded the bend in the tunnel.
His lamp caught movement immediately.
The creature skittered out of the darkness, six clawed legs scraping across the rock.
Kael stopped.
"…Stone skulker."
The creature was about the size of a large dog, with a low body and jagged plates of stone-colored armor along its back. Its narrow head twitched constantly as it sensed vibrations through the rock.
Stone skulkers were common pests in Terrava's deeper mines.
They fed mostly on mineral growth and smaller cave life.
Usually harmless.
Unless they got territorial.
Or hungry.
The creature stopped a few meters away.
Its head tilted slightly.
Instead of attacking, it stayed still.
Listening.
Kael didn't move.
Something about the creature's behavior felt strange.
Stone skulkers usually reacted instantly to movement.
This one just… stared.
Its clawed feet tapped lightly against the rock as it tested the ground.
Then its head tilted further.
Confused.
Kael frowned.
"Yeah," he murmured.
"I don't like that look."
The skulker circled slowly, its eyes never leaving the ground near Kael's boots.
It was sensing vibrations.
But something about Kael seemed to be confusing it.
Like the signal it expected wasn't there.
Or maybe…
It was hearing something different.
The creature suddenly lunged.
Kael reacted instantly.
He swung the steel rod sideways.
CLANG.
The rod struck the creature's armored shoulder and deflected it just enough that it crashed into the tunnel wall instead of him.
The skulker shrieked and spun around.
Fast.
Too fast.
Kael stepped back, raising the rod again.
"Alright," he muttered.
"That's enough of that."
The creature crouched low, claws scraping against the rock as it prepared to spring again.
Then it charged.
Kael swung downward.
CRACK.
The rod struck the creature's head hard enough to stagger it.
The skulker skidded sideways, shaking its head violently.
Kael stepped forward and slammed the rod against the tunnel wall.
The sharp metallic echo rang through the passage.
The creature froze.
Stone skulkers weren't brave.
They were opportunists.
And Kael suddenly looked like more trouble than he was worth.
The creature hissed once, then backed away.
One step.
Then another.
Finally it turned and scurried back into the darkness.
The scraping sounds faded down the tunnel.
Kael stood still for several seconds, breathing hard.
Then he slowly lowered the rod.
"Well," he muttered.
"That could've gone worse."
He crouched and placed his gloved hand against the stone floor.
For a moment nothing happened.
Then the faint vibration returned.
Soft.
Barely noticeable.
But definitely there.
Like a distant heartbeat inside the mountain.
Kael stared at the rock beneath his hand.
Then he pulled his hand away quickly.
"Nope," he said.
"Still going with concussion."
He stood and turned deeper into the tunnel.
The chamber waited somewhere ahead.
And now he knew two things.
First—
The tunnels were definitely not empty.
And second—
That stone skulker had reacted to him like something about him didn't belong down here.
Kael tightened his grip on the steel rod and continued down the passage.
What he didn't realize…
Was that the creature hadn't been confused because he didn't belong.
It had hesitated because, for the first time in thousands of years, the mountain was standing there in human form.
And the earth knew its own.