Narcissus' Cave

Narcissus' Cave is a dark enough place to give even the bravest of cats a feel of dread, for as soon as you step inside a cold feeling washes over you. No one can tell if the cave is still inhabited or not, for it is blocked by a huge, unnatural slab of stone after only a tail-length or so. Even stranger are the markings seemingly carved into the rock, spelling out an incomprehensable code...