Compartment 06
Theodore usually prefers to hole himself up toward the back of the train, but he joined Draco's compartment on the train to school and he'll be joining him again now. Rather than the usual travel clothes, he was dressed conservatively. Shirt buttoned up to his neck, tidily pressed slacks, a sweater. He even attempted to comb his hair a little. All the same, he looked a little cagey and would do things like drum his fingers on the binding of his book until someone gave him a look or told him to stop. This isn't new behavior for Theodore on the train ride home, but he's been more relaxed over the last couple of years.
After some twists and turns about halfway through the trip, he calmly set his book down and excused himself without saying a word. Sorry if you wanted to use the restroom, he'll be in there throwing up.