"This," said the mayor as he walked, "is where we come from." "I don't understand," said Charlie. "Before there was a Sabreton," said the mayor, "there was this." The mayor waved his torch so that Charlie and the others could see. They were walking deep into a cave. Shadows played upon the walls. "I don't like it," said James, "it's creepy." Charlie had to agree. "Once upon a time Charlie," said the mayor, "we all lived here." "What do you mean?" "Long ago, before even I was born and before there was a Sabreton, all of us humans lived together in this cave. It wasn't quite so dark then of course, it was open to the world, open to the elements." "Why would people want to live together in a cave like this?" asked James, "Why didn't they have caves of their own?" "For safety," said the mayor, "this cave kept everybody safe." "Safe from what?" asked Charlie, although he didn't think he wanted to know the answer. "Safe from the T-Rex, safe from thunder and lightening, but most of all safe from these." The mayor came to a halt in front of a tall damp wall and flashed his torch. "Wow!" gasped Charlie, "What are they?" "They're cave drawings Charlie, drawn by our ancestors many years ago and they tell our history." Charlie peered at the wall. "Oh my goodness!" he gasped looking up at the mayor. The mayor nodded. "The millipedes" he said quietly.