The Mystery of the Druids (German: Das Geheimnis der Druiden) is a single-player adventure video game developed by the German company House of Tales and published by cdv Software Entertainment. The game was first released in March 2001 for Microsoft Windows. The story takes place in Britain where Detective Brent Halligan an inspector at Scotland Yard investigates a brutal series of murders committed in England. The investigation leads Detective Halligan into a mystery surrounding the demise of the British Order of Druids and eventually takes him on a trip through time itself.