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This tunnel was clearly secretly carved out, with mud walls on both sides and obstructed by cabinets, could it be that the head chef of this place had, for some reason, wanted to escape? Chen Ke peered into the passage and discerned that it gradually ascended.
Chen Ke lit the Fire-igniting Broadsword and slowly bent over to enter the breach, wondering where it might lead. It really did pique one's curiosity.
The Fire-igniting Broadsword, when used as a torch, did not burn indefinitely; without viable kindling, it would extinguish after some time, but then it could be relit.
With the help of the firelight, Chen Ke walked in this tunnel for about 10 minutes, estimating a distance of about 1 kilometer, leaving the entrance far behind.
The tunnel steadily ascended and took a distinct right turn, seemingly directed with certainty where to dig, indicating the digger had conducted extensive terrain measurements and exploration.