A mountain is a perennial challenge. Even more so, it seems, when the mountain is solid popcorn. In this case the problem is not how to reach the top, but how to get back down. When Mr. Picklepaw climbed onto the top of an overheated storage shed, the stacks of popcorn kernels began to explode, leaving him on a pile as high as a two page spread. The problem is solved, not very ingeniously, by the mechanical device of a helicopter. After the buildup about the predicament, Mr. Picklepaw's descent is a let-down to the imagination.