The Adventure in Zeppler

Burgrave Eric of Wolfsburg sends his humble servants Karl, Alfred, and Bigitte to find a cart full of precious salt in the wilds of Augston, and Eric's daughter, Brynhild, joins in the search. They find way more trouble in the process when they come to Zeppler, the fief of Eric's friend, Duke Wolfram. In Zeppler, there is a child murderer on the loose, and possibly a spy among Eric's allies. Will Eric's servants prevent more children from being murdered? Will they find Eric's salt?