For generations, the structure of the tribe had been painfully stagnant: the strong men hunted, the women gathered and processed, and the injured or elderly were viewed as tragic burdens, slowly waiting for the winter to claim them.
Frodo didn’t sleep the night after the Blood-Walkers’ attack. Sitting by the embers of the central fire, he used a piece of charcoal to draw schematics on the smooth surface of a flat stone.
By the time the weak morning sun filtered into the cave, he was ready to introduce the Upper Paleolithic era to the concept of the assembly line.
His first target was the processing of the mammoth carcass...
Historically, marrow extraction was a brutal task. It required a hunter to smash bones with rocks, often resulting in shattered fragments mixing with the nutritious jelly, or exhausting the worker entirely.
Frodo sought out Bael, one of the hunters who had his leg shattered during the mammoth hunt.
When Frodo found him in the shadows of the healing alcove, Bael was staring blankly at the cave wall, his skin pale and his eyes hollow.
His leg was bound tightly in rigid sticks and leather, but he knew the law of the ice.
A man who could not walk could not hunt; a man who could not hunt was a mouth the tribe could not afford to feed.
"I am broken meat, Frodo," Bael whispered hoarsely as the boy approached. "Do not waste the healer’s moss on me. The mountain spirits are already pulling at my shadow."
Frodo sighed, dropping a mammoth femur onto the dirt in front of the crippled man.
Next to the bone, Frodo placed a strange contraption he had spent the last three hours building.
It was a log of ash wood, pinned to a natural stone crevice using a wedge of flint. Beneath the log was a flat, grooved stone.
"What is this child’s play?" Bael asked, frowning in confusion.
"It’s a Class Two lever," Frodo explained, though he knew the terminology was lost on the man. "The stone is the fulcrum. The log is the beam. I need you to put the mammoth bone in the groove, right under the heavy knot of the wood. Then, just pull down on the far end of the log."
Bael looked skeptical.
With a grunt of pain, the crippled hunter shifted his weight, placed the femur into the groove, and reached up to pull down on the end of the log.
He simply let the weight of his upper body pull the long end of the lever down.
The massive femur splintered perfectly down the middle.
The force exerted on the bone had been multiplied fivefold by the length of the wooden beam.
Bael stared in absolute shock at the clean split, the rich marrow completely exposed and untouched by grit.
"By the ancestors..." Bael breathed out, his hands trembling as he touched the cracked bone.
"With this lever, you can crack more bones while sitting down than three able-bodied men can do standing up. The tribe needs you." Frodo said.
Tears welled in the scarred hunter’s eyes. The crushing despair of uselessness vanished, replaced by a fierce loyalty.
Bael grabbed Frodo’s small hand and pressed it to his forehead. "I will crack every bone in the valley for you, Frodo. I swear it."
That was only the beginning...
Over the next few weeks, the cavern transformed. Frodo, as the son of the chieftain, implemented a strict division of labor.
Instead of everyone doing everything poorly, individuals focused on specific tasks, refining their muscle memory and increasing their output.
Security was heavily upgraded. Using fine, braided sinew, he laid out an invisible network of tripwires across the snowy passes leading to the cave.
These wires were connected to hollowed-out sections of mammoth tusks and rib bones hung near the cave entrance.
If a Blood-Walker so much as stepped into the canyon, the bone chimes would rattle wildly, echoing deep into the cavern.
But the most controversial change was Frodo’s approach to knowledge...
Tor walked into the main cavern one afternoon and froze in his tracks.
Frodo was sitting in a circle with six children... boys and girls no older than ten winters.
But they weren’t playing in the dirt. Frodo was teaching them how to knap flint.
"What is the meaning of this?" Tor barked, his footsteps drawing the attention of the cavern. "The secrets of the stone are for the elders and the proven hunters! You share them with unblooded children?"
Frodo picked up a perfectly triangular flint arrowhead.
Frodo handed the arrowhead to a young girl. "In my tribe, a spearhead is a spearhead. It must be exactly the length of my index finger. Not longer, not shorter. If a spear breaks in battle, the shaft must perfectly fit a replacement head without carving."
Tor scowled, struggling to comprehend the concept, but he couldn’t deny the results.
The children were producing sharp, uniform weapons at an astonishing rate.
To preserve the massive amount of meat they had acquired, Frodo designed an early permafrost cellar.
Instead of leaving the meat in the open to attract wolves, he had the strongest men dig deep into the shadowed ice at the back of the cavern, lining the hole with insulating pine needles and burying the meat in the sub-zero earth.
Wanting to inspect the efficiency of his new systems, Frodo took a walk through the cavern network, accompanied by his mother, Kaelen.
The women were processing hides with standardized bone scrapers that Frodo had designed to fit perfectly into the palm, reducing wrist fatigue. The injured men were operating three different lever-crushers.
But as they reached the rear of the cave, Frodo stopped in his tracks, staring at a massive contraption leaning against the wall.
It was a travois... a sled meant to be dragged across the snow to transport heavy loads like firewood and boulders.
Frodo had sketched the idea for the men a few days ago, using rigid wooden poles tied together.
But the sled in front of him was entirely different.
"You made this?" Frodo asked, turning to his mother in astonishment.
Kaelen smiled, a hint of pride in her hollowed cheeks. "Your wooden sticks were too stiff, Frodo. The ice out there is not flat; it is jagged and cruel. Rigid things break."
She knelt beside the sled, running her thin fingers over the craftsmanship. "I used the thick belly-hide of the deer for the base, layered with melted mammoth grease to make it slide like water over ice. I tied the frame not with stiff wood, but with braided mammoth hair and flexible sinew. It will carry the weight of three men."
Frodo was genuinely stunned.
He had provided the initial concept, but Kaelen had independently engineered a far superior version using her intimate knowledge of Paleolithic materials.
"It is brilliant, Mother," Frodo said softly. "Truly brilliant. With a few of these, we can transport enough firewood in a single day to last an entire moon cycle."
Kaelen beamed, her chest swelling with pride.
Continuing their walk to the cave entrance, Frodo looked out over his people.
He saw children playing, not by throwing snowballs, but by throwing miniature, standardized javelins with small wooden Atlatls, their form already improving.
He saw men and women sitting together without the oppressive dread of starvation hanging over their heads.
There was a deep satisfaction in Frodo’s chest
But as his eyes drifted past the tripwires and out toward the distant tree line where Kael and the Blood-Walkers lurked, his mind cooled his emotions.
They were surviving, yes. But a society built purely on flint, bone, and animal grease had a terrifyingly low ceiling.
They could defend themselves against small raids, but if Kael returned with a hundred hardened warriors, all the flint in the world wouldn’t save them from being overrun by sheer mass.
If he wanted to guarantee their safety against the warlords of the ice age, he needed to unlock the ultimate pillar of civilization.
He bent down and picked up a greenish rock from the cave floor... a chunk of raw malachite he had noticed earlier.
Copper.