Did the double dead tour with this company as my other half wanted to be scared xxxxless. Really good mix of history, humour and storytelling by our guide David who really should be presenting the Crystal Maze. Think of a 20 something Richard O'Brien. Very articulate well presented tour full of historical knowledge. Was I scared? No but I don't scare easily. But it was enormous fun. DO Wear sensible shoes as the vaults are really slippy and it is pitch black and uneven to walk on. David keeps a good pace and engages his audience well. If you dont like the dark or get claustrophobic then avoid this tour. If you want a bit light hearted fun with some history thrown in its well worth the money.