Knaak - Frostwing - New paperback or softback - X555z

Scheele - Mound Builders - New paperback or softback - 76 - X555z

Burgess - Mystery of Mound Key - New paperback or softback - X555z

Smucker - Mound Builders' Works - New paperback or softback - X555z

Knaak - Janus Mask - New paperback or softback - X555z

Knaak - King of the Grey - New paperback or softback - X555z

Wittenberg - Queen In The Mound - New paperback or softback - X555z

Knaak - DUTCHMAN - New paperback or softback - X555z