Thirsty

We walked and walked until we reached our first mystery point in the east. This area doesn't have any trees. All barren. I took small steps until I walked over something and it made a sound like I broke something. I looked down to see a white-colored stick. I bent down to see what exactly it was. I brushed some sand that was covering it and took out the white stick.

"Ahhh!!!" I screamed loudly and threw away the thing I was holding. It wasn't a white stick but the arm bone of a human. My heart started racing. Alex quickly ran towards me when he heard me screaming and squat down beside me.

" What happened?" he asked holding one of my hands. 

" See there." I said in a shaky voice and pointed my finger towards the bone with my shivering hand. He left my hand and walked towards the bone. He lifted it and was checking it like a forensic doctor.

He suddenly started laughing leaving me in a daze. Has a spirit gotten inside him?