Set of Two Believe It or Not Books

Did you know that a Polish knight named Stefan Bruszynski was so powerful he could support 6 other knights in full armor on his head? Or that Edgar Sims invented large mouse-like ears to improve hearing. If you love obscure and bizarre facts, then this set of invisible ink quiz books will provide you with hours of enjoyment. Each book contains several true/false quizzes, some with detailed illustrations and a "yes and know" invisible ink pen to find the correct answer. Set of two 52 page books.