Hell Train: The Cursed Manuscripts (Unabridged‪)‬

Clip and Xavi are youngsters in love, with their whole lives ahead of them. Clip, a psychology student, and Xavi, a med student, are catching the train into the university for an afternoon lecture. But today, they aren't going to make their destination. 

Shortly upon entering a short tunnel, the world stops making sense, and the future suddenly seems short. There are dangers on the train, least of all the other passengers, and for some reason, the lights keep going out. Strangest of all, the train should have left the short tunnel several minutes ago. It's almost like the tunnel goes on forever. And ever. And ever.