A new card will appear every day in your Opportunity deck for – more or less – the next twelve days. After that, something else will happen. You may wish to ensure you have learned as much as you may of lacre.
A knock on your door. A hunched figure. Every year, this Crimson Beast of Winter brings his terrible sack, demanding gifts to fill the void. And now you hear a high-pitched, faintly peevish voice: "What will you put in my sack?"