What does Mildred do with the books Montag leaves in house?

In Ray Bradbury's *Fahrenheit 451*, Mildred doesn't do anything with the books Montag leaves in the house. She is completely indifferent to them and, in fact, considers them a nuisance.

Here's what happens:

* Montag hides the books: He secretly brings them home and hides them in the ventilation system.

* Mildred doesn't notice: She's completely absorbed in her "family" on the parlor walls and doesn't pay attention to the books.

* The books remain hidden: They stay hidden until the Mechanical Hound discovers them and the firemen come to burn the house.

Mildred's apathy towards the books represents the lack of interest and engagement in intellectual pursuits that is prevalent in her society. Her ignorance and indifference are a stark contrast to Montag's growing curiosity and desire for knowledge.