Well to tell the truth, I bought a lionel and MTH premade houses on fire and wanted to make my own. I wanted it to look real and have the whole block filled with flashing lights, smoke and the fire seen burning.The project had really no rime and reason except 1- make it look real 2 -impressive with flashing lights and people 3- great flame and smoke.
You could say "The fire started in a abandoned building and the heat and ashes went to adjoining buildings."
Thanks for all the kind words....