Also known as road trains, or land trains.
Dr. Carter is a well known (at least in academic circles) as an Indiana Jones-esque scholar of the occult and professor of pre-human culture, a Mars born swashbuckler in her youth, now a tenured and crafty acquisitionist.
The PCs are stuck in a town with a strict peace policy, the tiniest scuffle can land you years in prison. The town also happens to be a tourist haven, so inn-prices have skyrocketed. The only way the PCs can rest is if they splurge on a room, with their enemy.