Harry was dubious, but he went along with it. He and Hermione joined hands, and slowly tried to board the errant boat. It didn’t seem to work at first, but with a bit of timing and co-ordination, moving in complete synchronicity, the boat became firmer and more stable ... they edged forwards, and with one last haul, they finally stepped aboard the little ship, which rocked in gentle Harmony as they sat inside it.