Unsurprisingly, your Tax Collector fails to make it back from the District of Xibalba.
It appears that one of your friends in Mill'en has heard that your giant monsters are feeling under-fed.
At least, that is the only rational explanation for the tasty snack that shows up at the District of Xibalba, introducing himself as a 'Tax Collector' from 'Mill'en Administration'.
The giant snake monsters are reasonably appreciative, but they're getting a bit fed up of Flembic blood.
Local Report + Colony Report:
One lone Flembic makes a long journey into the south. His cruel masters in Mill'en appear to have sent him all this way as some kind of practical joke, or possibly a token of thanks. He is fed to the giant snakes in the District of Xibalba.