A little girl builds a "truly great thing" out of junk. Her friend Stanley is nowhere to be found. But who is Stanley anyway? What a mystery! Until the great thing is almost complete, that is. Then, it's playtime, and there's just no stopping Stanley.

Crosby Bonsall’s many beloved I Can Read Books include The Day I Had to Play with My Sister; And I Mean It, Stanley; The Case of the Hungry Stranger; and the My First I Can Read Book Mine’s the Best.