Meet Prickle the Hedgehog. Prickle is always interested in learning something new about nature, world, and even space. By the way, a friend of his has actually been up there. Having read more than three hundred books, he is still thirsty for more knowledge and is eager to explore the unknown. Even today, having put on his cozy maroon knitted sweater, Prickle is reading a thick book. Later on, he is going to help his friend Cookie the Aviator prepare his plane for the winter. This is where Prickle can utilize his knowledge and, well, his sweater as well. It is not warm anymore, but helping friends is a pleasure.