A hyperbole is a figure of speech that is used to exaggerate something because the author wants to point out something important or give it more emphasis. In this case the sentence that contains an example of a hyperbole is "and stretches out a colossal hand"; the hand is not actually colossal, but the author wants to express that it is bigger than regular hands.
Due to the concealed and plastic imagery of a “Doll House” the lack of personalisation or editing of its exterior could convey a sense of secrecy and further its internal conflicts.The outside view of a doll house is uniform but the inside can be broken and tainted ,it acts like a mask to anything bad going on inside.