Even Oddlier by Paul Jennings

"Even Oddlier" by Paul Jennings tells the story of a young boy named Mark who discovers a magical, hidden room where he and his friends can have adventures in a world where numbers become characters. These characters, like the Even and Odd, are influenced by their number properties, creating a world of quirky rules and interactions. The story explores themes of friendship, imagination, and the fun of exploring different perspective

Condition - Tears around the edge of the dust jacket