The world was stunned when bombs exploded near the finish line of the Boston Marathon and killed 3 and wounded more than 250. Immediately, the city kicked into emergency mode, setting up triage tents to assess and treat victims and combing the streets to find out who was responsible. Readers will be engaged in the details of that fateful day, as well as the subsequent manhunt for the two brothers responsible for the bombings. And they will understand how law enforcement, medical professionals, the FBI, and the entire city pulled together to show the world that they are "Boston Strong."