The Seattle Puzzle is part of the Boxcar children series originally created by Gertrude Chandler in 1924. The Seattle Puzzle was added in 2007 and finds the Alden children, Henry, Jessie, Violet, and Benny on a business trip to Seattle with their grandfather. The mystery starts almost as soon as they arrive and the children discover riddles left by persons unknown that take them all over the city. My six-year-old son has really enjoyed solving the riddles. He’s spent enough time in Seattle to be familiar with some of the major attractions, and thinks it’s lots of fun to solve the riddles before the characters do. In the course of solving the riddles, the Aldens visit the Seattle Space Needle, the Fremont Troll, Pioneer Square, the Underground City, and Pike Place Market, and tour the harbor on a boat, all of which are lots of fun to visit with children.