Link- Spirit Tracks by cloudmip

While en route to the Tower of Spirits, the tracks they are on disappear, and as they watch, the Tower breaks into five pieces. They are ambushed by Cole, revealing himself to be a demon, and a mercenary named Byrne. Link is unable to protect Zelda from Byrne, and Cole uses Dark Magic to strip Zelda's soul from her body; Cole and Byrne then take her body and depart on a demonic train.