The Aldens are on vacation in Seattle! They're ready to explore the city, and one of Grandfather's friends is going to give them a personal tour. On their first day of sightseeing, they start the day at the Hungry Heart Diner where a mystery falls right into their laps! Benny finds a riddle taped to the bottom of their table. What does the riddle mean, and where will it take them? When the first riddle leads the children to another riddle, the Boxcar Children begin to wonder how this Seattle puzzle came to them. As each riddle brings the children to a new part of Seattle, the children try to piece the clues together. Who is planting the riddles, and what will happen if they can't crack the next one? Where will the final riddle lead them?
- Asian & Pacific American Heritage
- GRPL Staff Picks
- Artistic Reads
- Asian American and Pacific Islander Heritage Month
- 2025 Libby Book Award Winners and Runners Up
- How Does Your Garden Grow?
- National Poetry Month
- 250th Anniversary of the American Revolution
- Celebrating Women
- Curl Up with a Cozy Read
- Our Favorite Sleuths
- Life-Changing Women
- Women's History Month
- See all ebooks collections
- Asian American & Pacific Islander Heritage
- Mental Health Awareness
- Artistic Reads
- GRPL Staff Picks
- 250th Anniversary of the American Revolution
- 2025 Libby Book Award Winners and Runners Up
- Asian American and Pacific Islander Heritage Month
- National Poetry Month
- How Does Your Garden Grow?
- She Persisted: Women's history
- Women's History Month
- Our Favorite Sleuths
- Curl Up with a Cozy Read
- See all audiobooks collections