Calling all quiz and brain teaser enthusiasts. Contains a trilogy of quiz games. The case of the cryptic clue, a testing game of deduction. The case of the curious conundrums, a tricky test of lateral thinking. The case of the double agent, a curious game of disguise. Test & develop your powers of deduction, lateral thinking and problem solving skills. A perfect gift for any brain game enthusiast or budding detective. Part of Professor Puzzles Sherlock Holmes collection - A collection of mystery game inspired brain teaser puzzles.