Robin and Alexis appeared in the air and crashed outside the cave entrance. Robin fell weak to the ground as the effects of the Fiery pill wore off. And so does his cultivation reverted; not to Apprentice Realm late stage but Apprentice Realm low stage.
Worried Alexis crouched down and fed a green high-quality healing pill into his mouth, then she saw Robin's hand clenching the bomb trigger let it loose, resulting in the sound of 'CLICK'
BOOM...
The sound that could deaf a person's ear coursed through the tunnel reached the ears of people outside.
Bang...
CRASH...
Everyone saw the surface above the cave-in creating a cloud of dust covering the whole place. The tunnel crashed as huge rocks started to fly out through the cave tunnel straight at Alexis and Robin, seeing that Alexis formed a shield creating a wall for about ten feet with the help of wooden roots enclosing Robin and her within.