Are you mad about Dot-to-Dot puzzles? Ready for a more advanced challenge? Why not try our Extreme Dot-to-Dot! Exercise your brain with these complex picture puzzles ranging from 500 to over 1,400 dots. These books are extremely rewarding and great brain exercise. 1 Book with 40 dot to dot puzzles Extreme dot to dot explorers Puzzles range from 500 to 1,400 dots 48 Puzzles per book Includes 8 two-page spreads Ages 8+