Wu Long stashed the whole body of the Demonic Beast to further study it and its abilities at a later day, only cutting out the core so that it's potency would not dissipate.
"Follow me, there is something good down below", Wu Long then spoke to the three ladies who nodded and flew down following him, as he dug his way to one of the tunnels that the beast made deep underground, underneath all of the crushed rock debris.
Though he did not really 'dig', he was actually simply collecting the said rocks and boulders into his Earth Spatial Ring, massive amounts of it as the whole of the gravel bed around began to sink.
They reached the more solid bedrock underneath, as the whole area around them - with all the crushed rock now gone - started resembling a huge crater.
Thus, many permanent tunnels the creature made remained.
The beast was several times larger than a human so they simply floated down the tunnel that Wu Long picked, going deep underground.
