The Last Train to Darksville

From publisher blurb: An Adventure for Master Characters A rail caravan from Devil’s Breach to Darksville has failed to show up for three days running, and no one in Devil’s Breach can figure out why. It’s up to the player characters to investigate what’s keeping the trains from running on time as they ride what may well be the last train to Darksville. This adventure is designed for master characters. Lower-level characters had best not apply.