Haley Comet is a daring, spacefaring adventurer. Join Haley and her crew of mathstronauts in this action-packed adventure story-which will put your number skills to the test. As she races to the rescue, Haley will have to dodge the dangerous Calculons, and solve their sneaky riddles. Help her to work out pattern puzzles, crack space codes, and choose the right route through meteoric mazes. This fun and imaginative puzzle book is out of this world!