You drop your things off in your room, then decide to check out the rest of the train while you're here.

Behind the sleeper cars, the back of the train is predominantly storage, though half a car has seemingly been made available to capture creature aficionados. A toreka introducing themselves as "Centuria Jigsaw, Junior Quartermaster" assures you the captain's given the go-ahead on this venture.

"So yeah, you can have a little capture creature battle if you fancy- friendly wagers allowed! - or trade for some new friends to join you on your travels!"