When do the boys return, and how are they treated?

From the text:

There was a rustle in the gallery, which nobody noticed; a moment later the church door creaked; the minister raised his streaming eyes above his handkerchief, and stood transfixed! First one and then another pair of eyes followed the minister’s, and then almost with one impulse the congregation rose and stared while the three dead boys came marching up the aisle, Tom in the lead, Joe next, and Huck, a ruin of drooping rags, sneaking sheepishly in the rear! They had been hid in the unused gallery listening to their own funeral sermon!

Aunt Polly, Mary, and the Harpers threw themselves upon their restored ones, smothered them with kisses and poured out thanksgivings, while poor Huck stood abashed and uncomfortable, not knowing exactly what to do or where to hide from so many unwelcoming eyes. He wavered, and started to slink away, but Tom seized him and said:

“Aunt Polly, it ain’t fair. Somebody’s got to be glad to see Huck.”

“And so they shall. I’m glad to see him, poor motherless thing!” And the loving attentions Aunt Polly lavished upon him were the one thing capable of making him more uncomfortable than he was before.