As Mafan entered the dark passage, he used all his senses to know the way. He was scared, but he had no choice since it was now or never. He remembered what the diary said.
"Meters ahead from the entrance, there should be a small passage to the left. It should lead to a cavern full of white stones illuminating an inner room." He recited this over and over and thought to himself if he could just get to that part of the cave, it'll all be fine.
He pointed his stick to the ground to frighten snakes, rats, or other critters away. It would also help him from stumbling down on big rocks. As he moved, he heard the stick hit steel rails and some metallic and cracking objects on the ground. He wondered what they were but focused his mind to his destination.
One more update but I'll do it later in the morning. The chapter is a battle and I need longer time to edit.