A set of books appears in front of Dumbledore, in the Marauder's fifth year. Everything was going perfectly, nobody even acknowledged them until the end of the feast. Everybody was walking back up to their common rooms with full bellies, when Dumbledore called forward a number of students and teachers. He opened Hogwarts up for apparation, so that a few other people could join. Who were those people? The Marauders, their friends and their family.