The Treasure class has one additional piece of data, its value (@value) and I have written get and set accessors for this. When a new Treasure object is created, its initialize method is automatically called. A Treasure has three variables to initialize (@name, @description and @value), so its initialize method takes three arguments. The first two arguments are passed, using the super keyword, to the initialize method of the superclass (Thing) so that the Thing class’s initialize method can deal with them: