There was a visible tensing as Azula's grip tightened on the knife till her knuckles turned white.

"Of course...because of course somehow he got here first. But...I just saw him, less then an hour before I arrived here."

She was starting to fly off the rails, she had to get back into control. Turning away from Senku she stomped away to catch her breath and try to slow down.

"Zuko is my brother." She explained though he may have already caught on depending on how much Zuko told him. Azula needed to know.

How many people on this train already knew about her?