The third level up in age and difficulty in the Observation Puzzles with more complicated graphics. These puzzles can go older in theme and pieces with some children. Darker graphic than other puzzles in the line, shows a raging battle at a fortress. Very vivid but not overly graphic. Definitely a popular one for the boys, no matter what anyone says about gender-bias products. Finished puzzle is about 14.9 inches high x 24 inches wide. Even with this many pieces it still continues the theme with the border with images from the puzzle that can be used to play find the picture game.