}} Silver Shadow Caverns is a cave like underground layer that is most of the underground of Thieves Den! It was found by King Shadow Sail on March 29, 2011 while he was just lifting some rocks. He was very excited, he knew this cave would make a great layer, so he told one of his closest friends, King John Breasly. He suggested for this to be a hideout and Shadow loved the idea so much, he decided to share the space with John.