(2)
It was dark inside the cave, so pitch black that Frank couldn't even see his own hands mere inches from his face. It was also quiet here. While the thunderstorm and roiling sea raged on outside, the shelter of the cave was eerily silent. As he groped around in the dark for the cave walls and shuffled his feet so as not to trip and fall onto some jagged stone, he heard a sound that stopped him dead in his tracks.
The sound stopped just as quickly as he did. All he could hear was the water dripping off of him splatting against the ground. The storm and the waves sounded distant, muffled. There was his own breathing, still heavy and out of pace after the freezing ordeal he'd just barely survived. It had quite literally been sink or swim back there, and for that, he cut himself some slack. Lumpy's perpetually smoke filled lungs would have had a much more difficult time trying to recover.
Confident that all was well, he took another few shuffling steps forward. There it was again. A sound unlike the rest. A sort of… clicking. Sporadic of course, but definitely there. Something else too. Wind. Or at least the rush of air. Except, there was no breeze in here. Frank felt the goosebumps break out down his arms. Something wasn't right about this cave. Perhaps he could backtrack to the entrance and find a different route or see if anything or anyone had washed ashore.
He was just about to head back when he suddenly heard the clicking right behind him.