The Glacian Lives
As the royal party moves on, seeking to reach Tenebrae and then the Imperial Army’s HQ, they come across a saddening sight. Shiva’s massive corpse is left frozen beside the train tracks, murdered by the Imperial Army as they sought to stop any advancement of Noctis and his friends. All around, everything has been halted. Life no longer blooms in this area, and an endless snowfall has seized the lands.
Things take a surprising turn in Final Fantasy XV when suddenly, the train is frozen solid. There is a trial to be had, which is odd, considering that the nearby Astral was clearly dead. After a fight on a cold desolate bridge, the friends return to the train only for Noctis to be pulled into a sort of dream dimension. Ardyn is there, waiting for him, toying with his emotions as he eggs him on. While pursuing, it becomes clear that he has no chance of defeating Ardyn, yet something happens. A cold wind once again seizes the area and Gentiana, a spirit who served as an aid to the Oracle appears.
Gentiana’s true identity is revealed to be Shiva, the Glacian. She is the first that Lunafreya communed with, and she promised that she would give her support to Noctis if the need ever arose. She freezes Ardyn, sending him into a bit of a frenzy. He is unarmed, as he shares that he is actually immortal. But you can see his frustration as he leaves Noctis to continue his journey.