Sir Cumference, Lady Di of Ameter, and Radius are back in their second Math Adventure! This time, a potion has changed Sir Cumference into a fire-breathing dragon. Can Radius change him back? Join Radius on his quest through the castle to solve a riddle that will reveal the cure. It lies in discovering the magic number that is the same for all circles.
EBOOKS
- Available now
- New eBook additions
- Award Winners
- Health & Wellness
- Looking for a new recipe?
- Try something different
- Digging in the Dirt: Tips for Gardening
- Most popular
- New teen additions
- New kids additions
- See all ebooks collections
AUDIOBOOKS
- Available now
- New audiobook additions
- Enjoy biographies and memoirs?
- Try something different
- Audiobooks for your Commute
- Most popular
- New teen additions
- New kids additions
- Just Added
- Audiobooks for the Whole Family
- Listen Up: Great Narrators
- See all audiobooks collections