Alex just took in it's description. A black skull? Weird. Alex would have to make sure to cut it off and keep it. Sounds rather rare and possibly could just be used to decorate. Alex would just carry it around in his coat though. Alex looked back when she smashed the rock then looked back to the outside of the cave. Gradually getting dark.
"..." Alex didn't respond and sorta just froze.
[i]Can she know what I'm thinking at any time? Please be no. Mind-readers can invade my privacy. Know everything. Differ my thoughts knowing what is real or not. Capable of telling me what is reality or not. Ignorance exists for a reason.[/i] 
"... Wouldnt want such a beautiful maiden to be hurt." Alex barely smirked. If she could read his mind he could try and wear a mask to at least try to give the impression he didnt care about certain things he was thinking about, his comrades were important not his own insecurities. His past is something to be kept to himself, the only benefit of a new beginning would not be ruined. Distraction of a sort could help.
Alex eventually turned around. 
It was going to be night soon. He was a bit cold but didn't complain. He had seen enough fire for today. 

"... We should get some rest..." Alex sorta attempting to ignore his inner self telling him to not waste time and kill the man with a black skull. Alex said that but still stood at the enterance of the cave.