Jessie and her two younger sisters lived with their mother in an apartment building.
One evening, a fire started on the second floor. The smoke（烟） quickly spread（蔓延） through the whole building and the fire alarm went off. All the people ran out of the building. There was no time for the mother to take other things, so she just took three winter jackets for her children. They ran outside as quickly as possible.
Soon, the firemen arrived and tried to control the fire so that it wouldn't spread to other buildings. Standing in horror, the children watched their apartment building burning（燃烧）for hours.
Because of the fire, this family and twelve other families in the same building were homeless. But what happened next？They got help from the Red Cross office and many other people. They brought clothes, food and even money. A week later, all the families moved into their newly rented（租用的） houses.
Jessie's mother told her children, "So many people helped us. We must never forget what they did for us. "The three children agreed. Right away, they started to make special cards to thank people for helping them. At the bottom（底部） of their cards, they added this message：Don't play with fire. It's dangerous.
