We landed at the base of the dome, on the side nearest the jungle. We dismounted Thundercloud, and the masked man led her to a hiding place in the dense foliage. "Stay right here, girl." He patted Thundercloud's head affectionately. "We'll be back in a little while." Thundercloud bobbed her head and made a loud purring sound in her throat. Then the masked man strode out of the jungle and marched straight for the dome. I fell right in beside him. "No fences to keep people out, I see." "Because no one wants to go inside, most of the time," said the masked man. "Not many people even know it's here." The dome seemed even more vast from the ground, blotting out everything that lay beyond it. I felt strange as we approached it--shaky and queasy--though I wasn't sure if it was somethi