He knew very well that the tunnel itself was made of metal, and after dealing with the flesh tissue, there was absolutely no need to cover the remaining tunnel with liquid metal.
It seemed somewhat redundant, yet he still did it.
And now, the situation explained his reasoning.
Chen Ming forcibly solidified the liquid metal he left behind in the tunnel, thoroughly covering it with a layer, leaving no chance for the flesh tissue to seal the tunnel.
Flesh and steel were encroaching on each other's space for survival. These flesh tissues, empowered with psychic energy, even slightly gained the upper hand in the conflict with steel.
Chen Ming considered for a moment and then used spiritual energy to directly flood the entire tunnel with a large amount of molten iron, completely sealing it off.
