Can you work out whodunnit, with what and why like Miss Marple and Hercule Poirot? Put your armchair detective abilities to the ultimate test... Do you have the flair, order and method of Hercule Poirot, or the unassuming, shrewd intelligence of Miss Marple? You´re going to need it... Brush off your moustache, collect your knitting needles and put your little grey cells to good use in the case of the missing librarian. With a murderous culprit leaving behind 100 of the most perplexing puzzles to solve, can you complete them to follow the trail of the crime? Immerse yourself in the world of Agatha Christie with this new and official puzzling series of events.