X mark the spot

Stealthily, I crept closer to the chalk pit. I knew I shouldn't be there but I couldn't help it. Suddenly, the ground gave way and I tumbled into the chalk pit. When I was falling I could see a faint outline of an x.

I fell to the bottom and I saw a figure. he looked familiar. I knew it could be ........ Stig!!! Stig was a caveman who wore rabbit skins. He showed me things he was particularly proud of. I really liked the water plumbing system. I had to go, so I said goodbye and set of home.