Challenging Crossword Puzzles VOLUME 2 : Puzzles to challenge and entertain your brain (Challenging Crosswords) The ultimate collection of hard and challenging crossword puzzles for adults. 100 original and entertaining medium to hard difficult level large print crossword puzzles, curated by the world-renowned crossword puzzle maestro, Myles Mellor. Myles Mellor, known for his unique ability to craft crossword puzzles that are both challenging and...