Whatever the cause of the fire, your neighbor's firewood caught fire and burned your house. This is a question of neighboring rights. The fire at the city gate has affected the fish in the pool and implicated you. You can ask your neighbor to compensate for the loss, not 100%, but at least part of it. What you have to do now is to go to the fire department to get the accident appraisal report, and then you can sue through the court for reference.