The end of lord Rama:- One day the ring from Rama's finger slipped and went into the crack on the floor. Hanuman reduced himself to the size of a bee and slipped into the crack. read more
Not sure if this is lesser known, but the story of Ahiravan( or Mahiravan as he is called in some versions) is quite interesting. Ahiravan was the brother of Ravan, the ruler of Pataal Lok( the netherworld), and a master of illusion and magic. read more