Affair on the Concordant Express - Keys from the Golden Vault

Affair on the Concordant Express. An Adventure for 9th-Level Characters Wanted for crimes across the multiverse, an outlaw known as the Stranger is currently a prisoner aboard the Concordant Express, an interplanar train destined for Mechanus, where the outlaw is set to stand trial. In this heist, the characters must obtain a list of names the Stranger has committed to memory. The names in question are the true names of several powerful demons, devils, and yugoloths. The Concordant Express rockets through the Outlands on its way to Mechanus Adventure Background The interplanar outlaw known as the Stranger had humble origins. The Stranger was born into a slum and orphaned as an infant. Early on, they used their knack for magic to masquerade as a lost noble scion and earn patronage as a spellcasting student. Inevitably, the school the Stranger was attending discovered the ruse, but the Stranger always slipped away and reemerged at an even more prominent academy in another city with a new false identity. The Stranger perpetrated many crimes, none greater than the attempted theft of a book that held the true names of many demons, devils, and yugoloths (see "True Names" below). When the Stranger tried to flee with the book, a fiendish ward caused the book to disappear. By then, the Stranger had already committed many of the true names to memory. The Stranger then set off across the multiverse, making deals with various Fiends in exchange for keeping their true names secret. The Stranger survived all these dealings unscathed for years, but their luck eventually ran out. Fiendish foes set their sights on the Stranger, forcing the Stranger to flee to the Material Plane and take refuge in the city-state of Akharin Sangar, which is ruled by a powerful angelic being. (Akharin Sangar is detailed further in Journeys through the Radiant Citadel). But the Stranger underestimated the vigilance of Akharin Sangar's celestial host and was caught impersonating an angel. When the Str...