Each book on Charles’s “great literary clock” represents an attempt to overcome evil and commit to good, much like the individual ticks of a clock being another chance to renounce evil and embrace good. This is the second time that Bradbury mentions
Dr. Faustus, which sits at the top of the clock, indicating its importance and connection to the story. Like the title character of Marlowe’s story, if Jim or Will ride the carousel, they will effectively be making a pact with the devil. This passage also references the quote that gives the novel its title: words spoken by the witches in Shakespeare’s
Macbeth.