Curtis has many reasons for wanting to reach the front of the Train. One has everything to do with the script on his skin. (A fix-it fic because that ending messed me up.) Curtis/OC but can be read as Curtis/Reader

Le Transperceneige est mort, tout comme ses habitants. Seuls Yona et Timmy sont encore en vie. Yona se coucher dans la neige et tout laisser derrière elle, mais il y a un petit garçon dont elle doit s'occuper pour que le sacrifice de son père et de Curtis ait un sens. Seulement, elle ignore si elle en a la force.

They worship their ancestors with every frostbitten breath they take; they are dutiful children, in the end.

There are a lot of things Edgar doesn't know about Curtis, and he's okay with this. But this one secret is different.

In which Curtis is surprised enough that he wakes up after the train crash, and more surprised to find he's not alone. [Curtis/Edgar]

Outside was greater than any drug Yona had ever tasted. (For Idhren, Yuletide Madness Drabble Invitational 2014)

Curtis never makes it to the front of the train because he can't see a future without Edgar.