Something Unusual
When he gets close, he sees it’s a rock formation, but a breeze is coming from the small cracks between those rocks. It’s unusual and worth investigating. In fact, it could be a tunnel or cave, but he has to explore to find out.
Heavy Rock
Excited, Mark moves the rock out of his way. Though it takes time, he gets it done. He sees a hole behind, questioning where it leads and what he might find. However, he then wonders if he should wait for others or go in alone.