Answer:
Dill and Jem wanted to sneak up to the Radley house and see if they can have a view of Boo Radley's face.
Explanation:
The classic novel "To Kill A Mockingbird" by Harper Lee revolves around the story of the Finches who reside in the Alabama town of Maycomb. The novel deals with themes of growing up, family, good vs. evil, racism, innocence, education, etc.
In chapter 6, the last night of Dill's stay, Jem and Dill decided to go "on a walk", accompanied by Scout. But it wasn't a simple walk, like Scout revealed, "Nobody in Maycomb just went for a walk." It was some lines later that we got to know the real reason for their 'walk'. They were "going to peep in the window with the loose shutter to see if they could get a look at Boo Radley."
This was the real reason for the walk.
