From publisher blurb:
Wildheart thirsts for blood
The adventure Wildheart is the story of an enchanted forest that was once good, but got the taste of dragon blood and became dark and evil. Anyone can enter the forest, but no one leaves without paying a great tribute. It is a tale about old forgotten places, mysterious encounters, trolls and lindwurms – not to mention the first encounter with the great frost giant Blodughadda!
Wildheart is best suited for a group of four to six 3rd-5th level adventurers of varying archetypes. You do not need anything more than this module to enjoy the story, but if you wish to enjoy Trudvang Adventures to the fullest, make sure you get the Trudvang Adventures Hero Companion and Trudvang Adventures Setting Companion.
The original Swedish version of the adventure was hailed as “one of the best adventures of all time” shortly after its release.