Another Nightmare

Have you had this dream before?  You wake up in a strange place, the air is heavy and dense. Tall green walls surround you,  a purple sky... no, purple mist hangs above you. In the distance a clock chimes, calling for you. Was there a voice? There can't be anyone here. Sounds from memories long hidden away in your mind, perhaps this isn't a dream, maybe it's just a memory.  The Nightmare: A g…