A family-of-four owe their lives to a kitten after the four-month-old Thor woke them up alerting them to the build up of deadly carbon monoxide.
The lethal gas had built up after a power outage caused the Stamper family 's garage door to close while a portable generator was running inside.
Heidi Stamper, from Oakland, Michigan, woke up to the loud cries from Thor and noticed it was acting sick.
