A pitch black night

One day,on a pitch black night, there was a loud thud!What was causing it?Was it something in the zoo?After wondering for a while I stopped.Ahockingly, an elephant just disappeared.In my experience elephants don't just disappear; suddenly it reappeared, out of nowhere.Was I having a dream,that felt like a nightmare, or did I bang my head,very hard,how could this be happening?The only thing I could think to do was...Scream!Luckily,I also managed to run,at the same time.Not knowing where to go I hid.With the monkeys...