It had been years since Keiran Hayes had found reason to board the train to Hogwarts alongside the students. In the past, he would have been in his office, preparing for the school year and for the sorting ceremony and all the rest. It struck him as odd, then, when he glanced out the window and saw that the train would be passing over the black lake. It had never done so in the past, considering the lake was on school grounds. But perhaps things had changed and he had just never looked outside to see it pass by. Fairly incapacitated, though he was, the ex-professor and new counselor was eager to arrive, if only so he could go meet with his wife and their kids. He hadn't dared ask her to put off getting them settled or getting herself settled just to come with him on the trip. After all, he had spent the ride with a few of his past students (as much as admitting they were no longer his students made him ache inside), so something good had come from his trip.
The wind had really picked up for a while there, but Keiran was pleased to see that things seemed to be more calm now. Or, they did until a loud explosion like one would see in a Muggle film sounded, rattling the entire train nonetheless Keiran's compartment. His hand shot out, bracing himself with his cane even as he held Katherine to her seat. Kit looked up at him with wide eyes but said nothing, seemingly of the same mindset: Whatever this was, it was terribly unhelpful and undoubtedly going to cause some serious problems.
Standing despite the shaking of the train car, Keiran leaned against the window in an attempt to see what was happening. In the end, he held his hand out towards the door, ordering the students out of the compartment. If the train fell to bits, better that they were closer to the center of the car than at the windows. It wasn't actually going to save them if anything too horrible happened, but it was like with tornados and other natural disasters: the more surrounding you when it hit, the more likely you were to survive. Glancing over, he saw Katherine ushering the other students into the aisles, and it briefly passed through his mind that the girl, as quiet and withdrawn as she seemed, could truly find herself in situations like this. Where she needed to take the lead and be sure of herself.
Keiran didn't have time to consider or question it, though, because as the tracks curved, he could see the front of the engine trying desperately to slow down, but tipping over the edge of the chasm regardless. They were going down, and fast. There were options, though, he mused as he tried to cover everything mentally, as rapidly as he could manage. The lake would be at least a semblance of a barrier. Except the patronus from the Deputy Headmistress was a little too late reaching him. He knew full well what was happening. His eyes darted over the surface of the water, taking only a breath for him to lock his gaze on a collection of what could only be James's pack. It wasn't like Keiran hadn't heard about them. But how the hell had they gotten onto the Hogwarts Grounds? It made no sense.
The students, though, had to get off and away from them. That would be the goal, inevitably, to ensure that they kept the castle safe. Figuring out how to keep the werewolves out would have to come later. There was no choice. Forcing himself from the window, Keiran made his way into the hallway, where most of the students had collected at the back of the train. Apparently, many had figured it out as well. Some looked to him expectantly, and Keiran couldn't help but find himself reliving the fiasco with the Death Eaters. The one with Ana's daughter. The bit with Millie and Alphie. Was he really being set up to fail again?
Swallowing hard, he drew his wand, determined to use the tools of his trade to find a way out. A barge they could land on. A- a slide. He didn't know. Deciding to do anything and everything he could think of, Keiran started with the slide idea, knowing full well it wasn't perfect and was actually fairly ridiculous. But it was like they found in airplanes - it would at least send the students the right direction: away from the werewolves. So he moved into the compartment on the far side from where he had seen the wolves standing, and just prayed that there weren't more waiting on the other end of the lake. His wand came up, directed at the wall of the train, changing the surface to one rather like in the girls' dormitories where it turned slick to keep intruders out. It elongated, directing itself towards the water, hopefully close to the bank. The train may have been moving, but it was the best he could come up with through the pain of his leg and the anxiety from everything else he had witnessed. It would have to do.
He leaned out into the hall once more, shouting to the students. "C'mon! This is our best shot, right now, of not getting driven into the lake."
Immediately, Kit stood, gesturing for the younger students to head out first. At least the elder ones had a few more years of experience, where the first and second years were nearly on their own in this. She was quite right, Keiran found, and he stepped into the compartment to extend a hand to the first student. Another jolt hit the car, and Keiran was terrified to find that he was quite sure it was the first part of the train having crashed. Their time was running out and the train was tilting towards the side where he had transfigured the slide. Soon enough, the whole thing would fall off the track and into the drink.