High Tech Warning System
Owen always enjoyed listening to the canary chirp. He, and the other miners, had even given it a name. Today it had stopped chirping and dropped dead. Owen and the other miners ran as fast as they could. No one died from the invisible mine gases, that day.
He, and the other miners, had even given it a name. Owen and the other miners ran as fast as they could. Today it had stopped chirping and dropped dead. No one died from the invisible mine gases, that day. Owen always enjoyed listening to the canary chirp.