This particular air raid shelter is 300 meters long of labyrinth turns, had to lay bricks down to make arrows so we didn't get lost. Down one of the bunkers tunnels there is amazing portraits of men, women wearing helmets, research suggesting that their quality means they may have been painted from life, possibly to entertain the occupants during the wait for the all clear during the blitz. Other researchers think the faces could be sketches of those who worked in the famous Littlewoods factory. Each have initials under each portrait. One specific drawing has ULF underneath, a local explorer Kyle May looked into who this lady may be and he tracked it down to a woman named Ursula Lois Forshaw.