Crack! Crack! Crack!
The giant shield tunneling machine, thirty meters in diameter and hundreds of meters long, was slowly and steadfastly digging upwards.
It was a true iron giant, greedily devouring anything in its path.
Whether rock or soil, it swallowed them with ease.
The materials it consumed were directly processed inside it into magical cement, poured around the tunnel into freshly placed reinforced concrete molds.
As it advanced, it devoured and produced simultaneously, requiring no human operation.
The shocking scene left the distant Drow elves silent.
They watched in a daze, unable to sense any presence or danger from the hidden Gray Elven combat forces.
Yet, all the Drow elves were acutely aware.
Any fool attempting to attack the operating giant tunneling machine would face catastrophic retaliation.
Perhaps, this was a bait set by the Gray Elves and the Bay Territory.
Who would take the bait?
The Underworld never lacked fools or ambitious individuals!
