Following on the trail of her successful The Sherlock Holmes Crossword Puzzle Book, Mrs. Tepper presents an entirely new collection of crossword puzzles to test

Train your brain with these fiendishly difficult puzzles, the perfect companion for anyone wanting to keep their mind busy 'Fiendishly tricky' Daily Mail With t

My mind rebels at stagnation. Give me problems, give me work, give me the most abstruse cryptogram or the most intricate analysis, and I am in my own proper atm

​Solve over 144 puzzles, navigate around maps of London and the English countryside, search for hidden clues, and—most importantly—exercise your sharp int