A female black widow spider is so small it could sit on a quarter, but don´t let its size fool you. These tiny spiders are producing a powerful venom inside their bodies. Just one bite packs enough venom to make a person really sick, and sometimes it´s enough to be deadly. Striking photographs allow readers to get up close to these dangerous creatures while also helping them to identify the spider it´s best to avoid at all costs. Fact boxes share additional information and the fun narrative will keep readers coming back for more.