How to pronounce “ball of fire” in English

And we were in one of the hospitals that I had helped to set up when a seven-month-old baby was brought in with severe burns by his dad,and he told us that a ball of fire had fallen from the sky onto his house and onto the school next door.And so as we tended to the baby's burns, over the next few minutes, one after the other after the other, more of these children kept appearing.