From publisher blurb:
An adventure for master characters
The lands of the Empire languish in the grip of false winter as screaming blasts of cold come pouring out from a tear in the fabric of reality, causing temperatures to plunge, violent storms to blanket the ground under ice and snow, and banks of chilling fog to creep and crawl across the landscape. With this strangeness comes monsters, hideous and cruel, eager to feast on the confused and terrified people suffering from the chaos created by the unnatural weather. These are dark times indeed, and the people demand answers from their lords and masters. What does this weird weather portend? Who or what is behind it? Is the end of all things truly at hand?
In this adventure, a group of master characters set out to answer these questions, venturing into the Heart of Winter, where they discover the source of the troubles and, with mettle, can confront it to restore the seasons to their proper order.