Luck finally smiled upon him as he quickly found an 8-headed diamond hydra guarding eggs. The beast was monstrously powerful, but also predictable in its sleep routine.
One moment of carelessness was all he needed to steal one.
Or so he thought but one head saw him...
The escape had been frantic. He had to hide in countless crevices and abandoned tunnels. He spent almost all his high-level potions just staying alive while ascending.
And in the end...
He had to return the egg.
When he finally escaped and was returning to the surface defeated, having endured insane temperatures that only thanks to his gold beast he could withstand and that could be called torture, his body still ached with the memory of that heat.
Having suffered the constant stalking of powerful beasts...
Luck finally smiled upon him. This time for real.
He found that small vein at 350 meters, perfect for his purposes.