The land sloped upwards towards the formation as Eren traveled that direction. It wasn't a tough walk, but the heat made it feel oppressive. He felt his sweat stain his clothing, and his feet drag slightly as he walked. It was just that hot... hot enough to make a silrosian elf feel extremely uncomfortable. As he walked, there was no shadows cast anywhere, no land left untouched by the suns save for the rock outcropping... and as he grew closer, he saw the cave.. it indeed was a cave... one that was filled with sand, bones, and wind-blown debris that lead deep into the structure. He could pause on the threshold once he'd found it, or start off exploring it. Down within, he could see a glow of a light... as if torches flickered. Outside the winds picked up, and sand really began to fly. It was a burning wind, tinged with smoke.... as if something was burning off in the distance.
His magic protected him from the worst of it, but he could feel an odd dragging... as if it was all he could do to keep the spell in place. His Arcana definitely wasn't functioning normally. It might be due to the intense weather, how hot he was initially feeling, or from something else altogether.
While there was a scent of musk present throughout the cave, and bones littered the floor.... it appeared empty, meaning the scent was old, faded, as if gone for a season or more... and the windblown sand had no tracks present upon it. It was comforting even as the wind rearranged the land one grain of sand at a time behind him.