THERE has been another sighting of a mystery beast on Halkyn Mountain - and this time the witness says it may have attacked three lambs. The witness reported seeing a “large, thick-furred” animal stalking a herd of sheep on the community scrubland on the evening of January 6. He said the sheep, which are in lamb, began to act strangely and started to run before he saw what he believes could have been a big cat moving along the tree line. When he returned to the scene two hours later, he says, he found three dead lambs with huge bite marks .