"Our first instinct was just sheer disbelief. We were trying to tell ourselves that it couldn't be real. It couldn't be happening. But it was." In December of 1982, when Tom Ross was thirteen years old, he took a week's vacation to Mammoth Lakes in California with his aunt, uncle, and cousin. Almost from the moment they arrived at their condo, they experienced a near-constant barrage of bizarre phenomena that escalated over their stay, and seemed...