The Traitorous Templar: A Sherlock Holmes Adventure

Early one morning the curator of the Wallace Collection calls upon Sherlock Holmes requesting the Great Detective's assistance. Over the past few weeks, someone has been paying nocturnal visits to the gallery and apparently spending a great deal of time in one of the rooms devoted to medieval arms and armour. Although nothing appears to have been taken, the curator wants to know who is visiting after hours and why. When Holmes inspects the room, he makes a startling discovery that sets in m...