The children wanted to come back to the courthouse after dinner. What did Atticus decide to let them do?

The children did return to the courthouse after dinner, Atticus gave in and allowed them to come back.

“The jury might be out and back in a minute, we don’t know—” but we could tell Atticus was relenting. “Well, you’ve heard it all, so you might as well hear the rest. Tell you what, you all can come back when you’ve eaten your supper—eat slowly, now, you won’t miss anything important—and if the jury’s still out, you can wait with us. But I expect it’ll be over before you get back.”