...The cave ages!" Dr. Anton Strangelove took out a sheet of paper. "You see we'll visit the time in chronological order. This is the time when the man found the fire and killed mammoth!" Lefty and Panch olloked at their surroundings. The place was muddy and a volcano was soon to errupt. "What do we do first?" Turi asked. "We must find the caveman who discovered fire. We'll kill him before he does so and then we'll return in the preseent New York to see what changed." And so, they looked for the caveman till they found him. His name was...