In this Kosmos detective puzzle from the Three Investigators (Die drei ???) series, everything revolves around the mysterious adventure 'The Echo of Darkness'. The puzzle consists of 300 pieces and shows a detailed motif with a tent in a dark, cave-like environment. Once the puzzle pieces have been successfully assembled, the search for clues really begins: with the included UV lamp, hidden clues can be discovered on the finished picture. This detective game combines classic puzzle fun with an exciting criminal case to read and solve for all hobby detectives.
- Instructions
