Translated from the back of the book:
Winter in Weiden: Half a year after the events of the 'Unending Nightmares' a letter from the duke calls the heroes to the winterly duchy. Probably not an opportunity to recover from the nightmares - but can hardly become worse that the disaster at Dragenfeld, can it?
'Undying Greed' is the second part of the series 'The Marks of the Seven', a campaing co-authored by the most popular authors of DSA.
Additionally, the book contains additional rules dedicated to the detailed description of a creature veiled in misunderstandings and superstition: the Vampire!"
Additional user summary (contains spoilers):
Part 2 of 7 of the campain "The Marks of the Seven" about the return and downfall of legendary black wizard and demon master Borbarad.
In part two, an ancient elven witch uses vampires to harvest enough life essence so she can create a vessel for Borbarad's disembodied soul.