Remus got back to his office, having just been summoned by Snape to look at the Marauder's Map. He had told Harry off and taken the map not wanting to give it back to Harry. How on Merlin's green earth did Harry get the map, although on second thoughts, James would be happy. But Remus couldn't get distracted.
He took out the map and tapped it "I solemnly swear that I am up to no good." The map read "Welcome back Moony." He remembered that in seventh year, they had given the map some new features, like the search feature which would highlight who he wanted to find. Remus decided that he wanted to add Harry to the list of people that could be searched for. He found Harry's name on the map. He was now back in the common room with Ron and Hermione. He tapped Harry's name and whispered "voglio trovare Prongslet" using the nickname that the Marauders had given Harry as a baby. Harry's name suddenly highlighted in red with sparks flying out.
Remus also wanted to know which passageway Sirius was using to get into the castle, so he tapped his wand again and said "trovare Canicula" suddenly writing appeared on the map Padfoot knows you can't stop thinking about his sexy body As this disappeared more writing appeared Wormtail would like to remind you to place silencing spells on your curtains when you do find him this writing disappeared before finally the last co-writer's message appeared Prongs suggests Moony look in his bed for Prongs. Remus wanted to laugh at the silly things they'd programmed the map to say all those years ago, but now seeing those names on the page, he just wanted to cry.