How does Just William develop the theme of Adventure and Imagination?

Just William by Richmal Crompton develops Adventure and Imagination across the chapters the companion marks for this theme.

William and the Outlaws transform mundane settings into thrilling adventures (e.g., pirate games, mountaineering), using imagination to escape boredom and assert agency in a restrictive world.

William transforms ordinary objects into exotic exhibits, imagining a China rat, a wild cat, and a Russian bear.