a few weeks ago a lad was out walking the dogs on an old open cast that been restored to grazing land and some rough pasture when two terriers went in a hole that he didnt know was there, he could see the dogs in a kind of cavern with a tube leading away from him, he called them but there was no response so he pulled away at the earth till he could get his head and one shoulder and arm in to reach the first dog which he pulled out dead and the second was also dead he started to head home when he felt really unwell, he called me to say where he was and if he didnt call me back in ten min would