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Sir Cumference and the Sword in the Cone: A Math Adventure (Sir Cumference, Bk 4)
Sir Cumference and the Sword in the Cone A Math Adventure - Sir Cumference, Bk 4 Author:Cindy Neuschwander, Wayne Geehan (Illustrator) Sir Cumference, Radius, and Sir Vertex search for Edgecalibur, the sword that King Arthur has hidden in a geometric solid.