Сс косвенной речью. i heard a terrible falling sound outside.this place isreally dangerous.when i looked out,i saw only this yellow motorbike,but no rider

He says that he heard a terrible falling sound outside.
He says that that place is really dangerous.
He says that when he looked out, he saw only that yellow motorbike, but no rider.

Вроде так: I heard a terrible falling sound outside. That place was really dangerous. When I had looked out, I had seen only that yellow motorbike, but no rider.