Elderly kyton (chain devil). People keep calling him “Raymond.”
Ramon’s chains lace throughout every car of the train, and in fact hold the whole train together.
Sat at the back of the meat train.
Deep in the grips of dementia, dialogue meanders until the party can bring him his coveted fishing lure (which is a dead cat actually named Raymond). At that point, Ramon can tell the party just about everything they ever wanted to know about the train, and can even assist them to some extent.