Ace detective Laura Marlin returns in another gripping adventure mystery for World Book Day 2014 from award-winning author Lauren St John. When a prize-winning essay earns Laura Marlin an invitation to a midnight picnic on mysterious Bodmin Moor she can hardly wait especially since her best friend Tariq and husky Skye get to come too. But Bodmin is a place steeped in legend and as the fog descends it becomes hard to separate myth from reality. When a freak accident leaves the children alone Laura has to use all her powers of deduction to outwit an enemy who may not even exist.