"You wouldn't want to cause a riot," Lorcan confirmed, grinning.
He frowned about portkeys. "I've heard they're not very reliable," he said. "Not dangerous, that I've heard, but they don't always get you to the right place." He took another sip of coffee, then said, "But I think you can still buy look-the-other-way charms in Diagon Alley? That might do the trick, with muggles on the ferry."