Neville was walking by the lake. It was a hot day.
Soon, it would be time to leave Hogwarts for the summer. And good riddance, too. Neville's third year had been positively difficult. For starters, he had left a piece of paper with of of the Gryffindor tower passwords for the week lying around. Then Sirius Black, the murderer, had found it and read the passwords aloud to Sir Cadogan, the Fat Lady's substitute. And then entered the boy's dormitory.
Neville had gotten into a lot of trouble for that one.
He had also gotten a Howler from his grandmother.
It was not something he wanted to relive.
Suddenly, Neville saw something shiny near the lake, were water met earth.
It was a ring.
Then Neville made a huge mistake. He walked closer and bent down to examine it. Only, he slipped while doing so, to the amusement of some Slytherins who were nearby. Ignoring their laughter at his expense, Neville picked himself up, stooped down again, and touched the ring. Then he felt a jerking sensation behind his navel.
The ring was a portkey.