Action Park: Fast Times, Wild Rides, and the Untold Story of America's Most Dangerous Amusement Park

by Andy Mulvihill

When everyone was in place, Ken gave a thumbs-up. Big Al pushed the ball from its starting position down the graded slope. Things went well for the first fifteen seconds or so, with Frank remaining upright in the center of the ball. But on the first turn to go back across the mountain, the ball didn’t stay in the groove. It broke free and began rolling straight downhill. Ken’s face fell. He had been working up until the last minute gluing the PVC pipes together, not realizing they were warping under the heat. I could already see gaps in the tubing. Damaged by the hot sun, the plastic was expanding, severing the rail that was supposed to give the ball direction. Now it was free, unburdened by the track. The ball had achieved autonomy. It gained momentum, tumbling uncontrollably down the face of the slope and picking up tremendous speed. Inside, Frank spun helplessly, unable to stop. He could not abandon the craft, as the door opened only from the outside. At this speed, the seat was unable to keep him secure. One second he would be upright. The next, his feet would be pointing toward the sky. His mouth was open in what I could only presume was a scream, but the ball sealed off any sounds. When the contraption made it to the bottom without any visible damage, and Frank still appeared conscious, I exhaled. But it didn’t stop. It began rolling at high speed toward us like the boulder in Raiders of the Lost Ark. We scattered, my dad and I scurrying to the left, and Ken and Char...